New Joint: "Flatline" (Mutya Keisha Siobhan)

After teasing fans with a teaser of their single "Flatline" last month, the original Sugababes, who are now going by Mutya Keisha Siobhan have released the official audio in full for our enjoyment. Produced by Dev Hynes, who worked on the majority of their album, "Flatline" is officially set for a September 1st release, so it's clear that the "comeback" LP of sorts is a ways off. Either way it might turn out, take a listen after the jump to "Flatline" and Enjoy!

Remix: "Lay Down In Swimming Pools" (Mutya Keisha Siobhan)

The original Sugababes currently known as Mutya Keisha Siobhan has just recently taken on Kendrick Lamar's single "Swimming Pools (Drank)" with the assistance of producer Blood Orange. Entitled "Lay Down In Swimming Pools," Mutya Keisha Siobhan add a different flavor to Kendrick's solid joint and you can take a listen to their remix below.

A Cappella: "Boys" (Mutya Keisha Siobhan)

The original line-up of the British girl group Sugababes have returned in the form of Mutya Keisha Siobhan and the trio of ladies recently took to the net to perform an a cappella snippet of their brand new "return" single "Boys." With that said, peep their sublime harmonies below on "Boys" and lookout for Mutya Keisha Siobhan as we continue to move forward into 2013!