Cheryl Cole serenaded her boyfriend on stage to mark his 28th birthday on Saturday (13.10.12).

The 'Promise This' hitmaker sang a sexy version of 'Happy Birthday' and a chorus of Stevie Wonder's hit 'Happy Birthday' before kissing Tre Holloway on stage at the Manchester Arena and he was then presented with a giant gold birthday cake by some of his fellow backing dancers.

One audience member tweeted: ''I can't believe I saw Trezza kiss OMG, and I sang with Cheryl and 15,000 other soldiers happy birthday to Tre. (sic)''

Cheryl then splashed out a reported £15,000 on a party for the hunk, funding a free bar at lavish nightspot Circle.

A source told the Daily Star newspaper: ''Cheryl booked out the most exclusive room in the club, which is the Inner Circle.

''They were drinking lots of expensive champagne and the cocktails were free-flowing all night long.

''Tre is a really good dancer and they were all doing routines together,''

Tre isn't the only person Cheryl has shown generosity to on their birthday.

The Girls Aloud star has sent a set of One Direction dolls to Katy Perry - who she grew close to when they appeared on British programme 'The Graham Norton Show' together - as an early 27th birthday gift ahead of her big day later this month.

A source told The Sun newspaper: ''Cheryl's been busy with her tour so she wanted to make sure she sent a present well in advance and let Katy know she was thinking of her.

''She knows what a big fan Katy is of the boys and how she has a major crush on all five of them so she knew Katy would love the dolls.''