Chris Martin marked his 40th birthday by paying tribute to DJ Elvis Duran as the presenter received a star on the Hollywood Walk of Fame.
The Coldplay singer joined music mogul L A Reid to honour Duran outside the Capitol Records Building near Hollywood Boulevard.
On stage, Martin read a fake Wikipedia entry about Duran, claiming he was born in 1914 "live on radio" and his full name was "Elvis Beyonce Marshall Mathers Duran".
He also claimed Duran inspired the names of Elvis Presley and pop group Duran Duran and the DJ's dramatic weight loss in recent years came after scientists "split Elvis into two".
Taking a more serious tone, Martin said: " I've never done this kind of thing before in my life. When I got the email the other day I was in Israel and Palestine and it said 'do you want to come and do this thing for Elvis?'
"My immediate response was that guy always shows up for us, he's done so many kind things for me and hundreds of other artists.
"He's a friendly voice in the morning to millions of people and that's a very important role. You could be a real dick.
"You really give people uplift and joy and grace and kindness and that's why I'm here for you. I love you and thank you for doing what you do."
Duran, 52, was presented with the 2,603rd star on the walk of fame, honouring a 30-year career as a radio personality.
Elvis Duran and the Morning Show, which broadcasts from New York City, is syndicated to more than 80 stations across America.
Epic Records boss Reid - a former judge alongside Simon Cowell on X Factor USA - told Duran: "The beauty of this star is it will light up this sidewalk for eternity.
"Your decisions in your life, your taste, your talent, have contributed to popular culture maybe in a way that no-one else has, which gives you the right to bear the name Elvis.
"A lot of people celebrate Elvis Presley, we celebrate Elvis Duran."
On stage, Duran said: "I'm totally touched and totally honoured.
"Each star represents someone who changed the business, who changed lives.
"What I love is that under my name is a microphone, which is all about radio, and radio is still so important."
Eric Trump, son of US President Donald Trump, was among the guests watching Duran receive his Hollywood star.
After the ceremony, he wrote on Twitter: " Congratulations to our dear friend @ElvisDuran on your well deserved star! You are an incredible person and talent!"
Eric Trump's wife Lara tweeted: "Congratulations @elvisduran. We were proud to celebrate your incredible #HollywoodStar with you today!"