President Obama gestures during a campaign speech Thursday, Oct. 25, 2012, in Tampa, Fla. (AP Photo/Chris O'Meara)

Here’s what’s happening today in pop culture, and it’s all about the election:

• President Barack Obama appeared on “The Tonight Show With Jay Leno” last night — joking about Donald Trump and getting serious about an Indiana Tea Party Senate candidate’s offensive remarks about rape. [Entertainment Weekly]

• Katy Perry performed at a Barack Obama rally in Las Vegas last night, and showed her preference with a ballot printed on her dress (with the Obama/Biden ticket already checked). [The Huffington Post]

• Rocker Axl Rose told Jimmy Kimmel that he “would lean Obama,” though he also admitted that he hasn’t “really voted.” [The Hollywood Reporter]