Question: What's better than Cheryl Cole's nice face? So imagine how chuffed we were when we discovered that Cheryl had worn THIS outfit to bandmate Nicola Roberts' 27th birthday in London last night, with her boob barely covered by a small patch of material. With no straps or bra to speak of, we were hoping that Cheryl's unruly boob would pop out and greet the paps, but thanks to a careful strut and constant flanking from Tre, she just about managed to keep it under wraps. Competing with her in the boob stakes was Nicole Scherzinger , who rocked up to the party in her X Factor outfit, which looked unbelievable with her amazing curves. Birthday girl Nicola Roberts went for somewhat different outfit style, ditching her little dress in favour of a full Rupert Bear style suit.