Little Mix feel "empty" without bandmate Perrie Edwards on stage with them.

Blonde Edwards - who is currently dating One Direction's Zayn Malik's - recently had her tonsils out and was consequently forced to pull out of a string of scheduled Little Mix shows.

Bandmates Leigh-Anne Pinnock, Jade Thirlwall and Jesy Nelson revealed at the Capital FM Jingle Bell Ball last weekend that they're missing their fellow singer.

Nelson told yahoo.com: "We miss her loads. She had tonsils taken out but she's all well and she sends her love but we're trouping on for our fans! It feels very empty on the stage but she's fine so hopefully she'll be getting better."

Little Mix also gushed about stars they would love to collaborate with in the future, and named Nicki Minaj as their ultimate choice.

The X Factor 2011 winners shared the stage at the annual music event with a host of big name stars including One Direction, Cheryl Cole and JLS, but revealed who they were most looking forward to seeing.

Nelson added: "Bruno Mars. He's amazing. We saw him in soundcheck, he's unbelievable."