By Ashley Fetters
Updated August 10, 2011 at 10:24 PM EDT
Keiny Andrade/Getty Images

Joe Jonas may be “on his worst behavior,” but from where we’re standing, his bad side sounds pretty darn good.

“Love Slayer,” a spiffy new single from Jonas’ Oct. 11 album FastLife, was released online today. (Have a listen here at the AOL Music Blog.)

The 21-year-old’s clubby, Taio Cruz-esque ode to an irresistible “stone-cold dream stealer,” is the second release off of FastLife; Jonas’ “See No More” is already available on iTunes, though he’s also performed songs from FastLife in his live shows this summer.

JoBro No. 2 has been a busy kid lately (seriously, our Jonas Sonar has just about bleep-blurped itself to death these last few weeks): Apparently when he’s not busy putting out hot records, protectively haunting Olivia Wilde’s house, or paying zero attention to Shia LeBeouf, he’s hanging out with Britney Spears.

As reported on, Jonas joined Spears and Nicki Minaj on their Femme Fatale tour for a show in New Jersey on Aug. 5, and announced last week that he’s signed on to play 10 shows on the European leg of the tour, starting Oct. 16.

What do you think, Music Mix readers? Is Joe’s new bad-boy persona a little grown-up for the onetime teen sensation? Or is Joe bad and perfectly good at it? Let us know in the comments!