Jack Black took it upon himself to raise the spirits of his fellow striking actors by stripping to his underwear and singing a Taylor Swift song at a fundraiser.Black was performing at the Give Back-ular Spectacular! Show on Wednesday (October 25) at the Orpheum Theatre in Los Angeles, an event held to support members of the acting union SAG-AFTRA who are struggling due to the strikes.Black, who had been expected to perform a stand-up set, ripped his shirt off and walked through the crowd, asking for any song requests.Responding to one suggestion for Swift’s ‘Anti-Hero’, Black said, “I know that one. Everyone knows that fucking song!”Audience member Amrita Khalid shared the clip of the performance on X, formerly known as Twitter, adding, “Watching Jack Black strip and then serenade us with Taylor Swift wasn’t on my bingo card for 2023”.Watching Jack Black strip and then serenade us with Taylor Swift wasn’t on my bingo card for 2023.