Aguilera lines up Goldfrapp, Sia for LP

Christina Aguilera has lined up a raft of established electro acts to collaborate with on her upcoming fourth album.

The singer is rumoured to have sought out the talents of British acts Goldfrapp and Ladytron to work on the follow-up to 2006's Back To Basics.

Aguilera has already confirmed that Zero 7 singer Sia will be working on the new record, telling Billboard: "I'm definitely a fan of Sia's. I was thrilled she also wanted to work together and, in turn, was a fan of mine."

She said the pair plan to record together in January, but are "setting the wheels in motion now... I'm not exactly sure what we're gonna get when we get in the studio together, but as with all great things I'll go in and there's probably magic to be had".

Aguilera's greatest hits package Keeps Gettin' Better is out now.