Cheryl Cole appeared to suffer a wardrobe malfunction at the 'What To Expect When You're Expecting' premiere last night (22.05.12).

The 28-year-old brunette - who makes her acting debut in the movie as a judge of a celebrity dance-off competition - seemed oblivious that her stick-on bra seemed to come free and popped out of her lengthy Victoria Beckham dress.

Cheryl was joined by co-star Cameron Diaz at the premiere at London's BFI IMAX cinema, and the former 'x factor' panellist took to her twitter account this morning (23.05.12) to reveal she enjoyed a good time at the event.

She tweeted: ''Morning .. Was really nice to meet/see some of you yesterday @ the What to expect when your expecting premier ! Such a Good film btw. (sic)''

Cheryl also warned viewers planning to watch the movie - which stars Jennifer Lopez, Matthew Morrison and Chris Rock - that it is ''quite emotional''.

She wrote: ''And if your going to see it be warned its quite emotional (I am not the only one that thinks it) (sic)''