Britney Spears will make her second guest appearance on the CBS sitcom How I Met Your Mother tonight, and it looks like a third appearance could be in the cards for the pop tart.

Monday’s episode was written to leave the door open for Spears to make another appearance on the series next season.

“She was better than the first time, and I think the fans will enjoy it because her return answers a larger mystery set up earlier in the series,” Craig Thomas, the show’s co-creator, tells The Hollywood Reporter.