Published 01/01/2014 | 18:16
NEW YORK, NY - AUGUST 25: Caroline Wozniacki and Rory McIlroy attend the 2012 US Open party hosted by Poland's Consul General at Beaux Arts De Lamar Mansion on August 25, 2012 in New York City. (Photo by Charles Norfleet/Getty Images)
Rory McIlroy and fiancee Caroline Wozniacki
Holly and Rory dated for seven years
Holly also dabbles in modelling
Rory McIlroy's ex-girlfriend and childhood sweetheart Holly Sweeney has stayed quiet on the news of his engagement to tennis star Caroline Wozniacki.
Ulster cheerleader Holly (22), who dated Rory for seven years before eventually splitting in 2011 has been active on her Twitter account today, but failed to mention her ex.
"A lot already packed into 2014 and we're only half way through the 1st day, let's see what the other 364 have in store," she said.
Sweeney has spoken publicly about her high profile split and even held a 'Golf Pros, Tennis Hoes’ theme night while appearing on TV3's Celebrity Come Dine With Me last December.
Rory and Caroline took to Twitter to announce their engagement last night, with almost simultaneous posts on the social network.
The pair, who are ringing in the New Year in Australia, tweeted pictures of a diamond engagement ring on Wozniacki's finger alongside a picture of fireworks over Sydney Harbour Bridge.
Mairead Farrell shows off her enormous diamond engagement ring from fiance Louis Ronan
Nicky Hilton has finally given a glimpse of her impressive diamond engagement ring.
Actress Riley Keough shared this photo of her with fiance Ben Smith-Petersen
Footballer Shay Given and his girlfriend Becky Gibson revealed their engagement after a year and a half together
La Toya Jackson announced her engagement to business partnerJeffr Phillips and proudly showed of fher 17.5 carat diamond ring.
Grainne Seoige and partner Leon Jordaan are the picture of happiness as they announce their engagement
Comedienne Jenny McCarthy showed off her massive engagement ring to Donnie Wahlberg while co-hosting The View
Louise Duffy shows off her beautiful engagement ring to former Kerry footballer Paul Galvin
Kelly Brook has shown off the diamond engagement ring given to her by ex Gladiator David Tornado McIntosh
ScarJo gave a fresh look at her HUGE engagement ring to French journalistRomain Dauriac.
Mila Kunis was sporting a huge engagement and sources have confirmed shes engaged to Ashton Kutcher after two years together
Actress Amber Heard flashes her incredible engagement ring to fiance Johnny Depp
Irish golfer Rory McIlroy proposed to his longtime girlfriend Caroline Wozniacki in Sydney on New Years Eve
Olivia Palermo is engaged to model boyfriend Johannes Huebl after he proposed in St Barts
It looks like the third time will be the charm for Kim Kardashian walking up the aisle. The reality tv star is now engaged to boyfriend Kanye West, after an elaborate proposal. They have a daughter Nori (four months) together.
The Hills star Lauren Conrad announced her engagement to boyfriend of two years, William Tell, by posting this photo on her Instagram account.
Jenson Button and his girlfriend Jessica Michibata became engaged after five years together
Actress Hayden Panettiere has finally confirmed what most of us have long suspected - she is engaged to her Ukranian boxer boyfriend, Wladimir Klitschko.
Glee actress Naya Rivera is now engaged to rapper Big Sean after just six months of dating.
Actress Riley Keough split from reported love interest Robert Pattinson after a brief romance earlier this year and reunited with ex-boyfriend Alex Pettyfer, whom she soon became engaged to.
The Big Bang Theory actress Kaley Cuoco has announced her engagement to her boyfriend of just three months, tennis player Ryan Sweeting.
Is Mila Kunis engaged to Ashton Kutcher? If this ring on her left finger is any giveaway...
Scarlett Johansson flaunted this vintage engagement ring at the 70th Venice Film Festival as she announced her engagement to French creative agency manager Romain Dauriac.
The massive sparkler is a classic round cut diamond and Cat (36) beamed as she showed it off when she stepped out at the WGSN Global fashion Awards. She married funnyman Patrick Kielty just months ago in a very small and very private ceremony in Rome.
Little Mix's Perrie Edwards has announced her engagement to One Direction's Zayn Malik. She intially sparked speculation of a proposal after sporting this incredible rock at the world premiere of 1D: This Is Us.
Glee's Matthew Morrison proposed to his girlfriend of two years, Renee Puente, and she showed off her incredible sapphire and diamond engagement ring at Elton John's White Tie & Tiara Ball.
TV presenter Jennifer Maguire will marry her Italian fiance Lauterio Zamparelli next year, but she said that she is a low-maintenance bride, who is more concerned with fixing up her apartment than planning her wedding.
Jennifer Love Hewitt famously said that she had three engagement rings reserved at Tiffany's for the day when she finally accepted a proposal, and that day has finally come. The actress is engaged - and expecting - with her Client List co-star Brian Hallisay.
Rosanna and Wesley got engaged over Christmas last year while on holiday in Mauritius. Wesley got down on one knee after a walk on the beach. The ring, which is a big square solitaire on a band of diamonds is reportedly worth €40,000.
Former Miss Ireland Sarah is celebrating after getting engaged to her long-time partner, Pat Jennings. It is believed that they got engaged while enjoying a romantic break in New York.
Theres been quite the backlash to the $1m ring that Justin Theroux gave Jen. The New York Daily News said it was so big, its a surprise that Jennifer can lift her arm.
The actress, who is engaged to Klaxtons star James Righton, is the proud bearer of a diamond sparkler.
Halles fianc Olivier Martinez clearly put a lot of thought into this ring, which is a one-of-a-kind emerald engagement ring by Paris jeweler Roberto Mazio. The yellow-gold setting with codes and symbols that only Halle can see.
Muse frontman Matt Bellamy proposed to the actress, whom he has been dating since 2010, in NYC. The ring, a platinum-set ring with an emerald-cut diamond and tapered baguettes on the side, is worth around $200,000.
Jessica and her fianc Justin Timberlake are said to be tying the knot in Italy this weekend. He proposed with this fabulous six-carat radiant cut ring. Youd really have to say yes, wouldnt you?
The actress unveiled her square cut diamond from boyfriend Michael Polish on Twitter. She wrote: This photo was taken by my husband-to-be. Thank you for all the wonderful engagement wishes. . . . We feel truly blessed."
Natalies dazzling ring, which was designed by her boyfriend (now husband) Benjamin Millepied, isnt just beautiful; its eco friendly too. It includes recycled platinum, an antique center stone and accenting pav diamonds.
The future Duchess of Cambridge was given the late Princess Dianas engagement ring, an 18-carat sapphire and diamond one by Prince William. It was my way to make sure my mother did not miss out on today and the excitement that we are going to spend the rest of our lives together, he said.
When oh when are Brangelina going to get hitched? Until then, we must console ourselves at gazing at her $500,000 Robert Procop ring that Brad helped design
When your husband is the richest hip hop artist in the world and youre not short of a few bob yourself, spending $5m on a diamond engagement ring probably doesnt seem like a big deal.
Ryan Reynolds didnt just put a ring on it, he put a very big ring on it. He chose a light pink oval diamond in a gold rose setting for his Gossip Girl. The couple got married on September 9 of this year.
Vogues got a massive rock from Brian McFadden. The pair married in a medieval Italian castle in September.
The actress, who was previously engaged to Jude Law, said yes to her boyfriend of one year, the actor Tom Sturridge when he presented her with a diamond sparkler. Sienna gave birth to the couples daughter Marlowe in July.
Reeses beau Jim Toth splashed out on a rare four-carat diamond engagement ring by William Goldberg, said to be worth $250,000. Nice.
Drew had been dating her art dealer beau, Will Kopelman, for just a year, when he presented her with an engagement ring by Graff. The couple, who married in June, celebrated the arrival of their first daughter, Olive, in September.
The singers agent boyfriend proposed with a traditional three-carat ring by Neil Lane. But will the wedding actually happen? There are rumours doing the rounds that its all off between the couple, who have been dating since 2009.
The story behind the models ring is so romantic. Fiance Jamie Hince knew that Zelda Fitzgerald was her idol so he tried to track down Zeldas original diamond ring. When that didnt happen he found sketches and had a similar one designed. Bless!
The star couple have a combined following of more than two million people on Twitter and have frequently used the social media website to have fun with their followers. Announcing the engagement, the Northern Irish golfer and current world number six told his followers : "Happy New Year everyone! I have a feeling it's going to be a great year!! My first victory of 2014 #shesaidyes!!"
Danish tennis player Wozniacki (23) -- also in her sport's top 10 -- tweeted the same pictures and a message saying: "Rory and I started 2014 with a bang!...I said YES!!!!"
The duo started dating in the summer of 2011.