After the good-natured feud between Will Ferrell and Red Hot Chili Peppers’ drummer Chad Smith came to a head, the doppelgänger duo took to settling their differences with a charity drum-off on The Tonight Show. And now that peace has been reached, they’re ready to open the challenge to other celebrities and drummers they sort-of resemble: In a recent interview with Spin, Ferrell and Smith called out Metallica’s Lars Ulrich, with Ferrell noting that “Lars gets pissed because he gets mistaken for both me and Chad Smith,” and inviting him to come and settle the matter on the drum kit.