Britney Spears' smash single “Till the World Ends” is burnin' up the charts and the radio airwaves, cementing its status as the best song she's produced in years.
Sadly, she declined to perform that song on Jimmy Kimmel Live last night.
She already did that one on Kimmel earlier this spring, so we'll allow it, we suppose. In its place Tuesday, we got "Big Fat Bass" (bass as in base, not Chuck).
The best part about this performance? The stage set, with Britney flinging herself over some bulging speakers. Watch her in all her lip-synching glory below!