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Frankie's last bash was with the Dubs

Saturdays singer Frankie Sandford's last public appear-ance before checking herself into a clinic was in Dublin.

The 22-year-old toasted Arthur's Day with members of the All Ireland winning Dublin team.

It has been reported that Frankie -- who was snapped with her band mates at the St James's Gate brewery with the Dublin football team -- signed herself into a clinic for personal reasons following a lengthy absence from the spotlight.

The Londoner looked the picture of health as she was photographed with pals Una Healy (30), Rochelle Wiseman (22), Mollie King (24) and Vanessa White (21) in September, before playing a gig in the capital.

According to sources, the brunette beauty was friendly as she chatted with Blues players Kevin McManamon and Barry Cahill last month.

"She looked in great form, she was extremely chatty and the lads were delighted to meet her. Everyone found her very pleasant and nice to people -- there was no diva attitude whatsoever," said the source.

The insider added that Frankie (Wayne Bridge's girlfriend) did not look ill or unhealthy at the VIP event: "She looked slim, definitely, but by no means dangerously skinny. She was the same size as the other girls -- and she's quite petite anyway," a source told the Herald of the former S Club 8 member, who added the Ego singer worked long hours.

"A lot of these stars burn themselves out and battle exhaustion because they work so hard. Frankie is a very attractive girl, she is the most approachable one in the band."

Allegations that the pop group were taking a two-year break from the business initially surfaced following the announcement of Tipperary local Una's pregnancy.

The group was seen leaving their manager's home looking visibly upset -- with Frankie nowhere to be seen.

Last week Frankie was also missing as the girls left a vocal coaching session.

Frankie took to her social networking page over the weekend to apologise for her absence: "Sorry I haven't tweeted in a while, I've not been very well," she said.

A spokesperson has said her admission to a clinic has nothing to do with alcohol, drugs or a cosmetic procedure.