
Not only are Brit and Nicki touring together now they teamed up for the "Till The World Ends" remix and brought in Ke$ha, who actually co-wrote the original.
Check it out...

Buy it on I-Tunes here!
"I'm unbelievably sorry,"said the 18-year-old in an interview.
"We were only interested in the music."
The two had attached the Trojan to an MP3 file that was then sent to the musicians' official addresses, their managers and their record companies.
The police were informed of the hacking after a fan of Kelly Clarkson alerted her management that unreleased songs of the singer were being sold online.
In a letter published yesterday by Germany's Bild newspaper, Deniz A reached out to the musicians he had wronged
. "Dear Lady Gaga,"he begins,
"I am ashamed of what I have done. I did not think about the consequences."The aspiring DJ blamed his "ambition" for the "problems" he caused the stars.
"I never thought it would go so far,"he wrote. According to his lawyer, Burkhard Benecken, the teenager
"felt like he was in a movie". "It is almost unbelievable that such a boy could hack into the accounts of superstars,"Benecken told the AFP.
"He knows he made a mistake."German authorities have yet to file charges, but Duisburg state prosecutor Rolf Haferkamp said the investigation would be completed "soon".
"We are pulling together what we have learned,"he told Bild.
"[Pieces of evidence] already fill two fat binders."