Dave Grohl is about to beat a record he already holds on "Saturday Night Live." The Foo Fighters are set to perform next weekend, and it'll mark the bands ninth appearance as the show's musical guest. However, it will be Grohl's 15th time appearing on the show. Grohl has taken the SNL stage with Nirvana, Them Crooked Vultures and Tom Petty and the Heartbreakers as a special guest. In other news, the Foo Fighters are planning an arena tour next year. It kicks off in mid-July.