Justin Timberlake picked the perfect moment to slam Kanye West, who dissed his album's lead single, "Suit & Tie," during a February concert in London. During Timberlake's live performance with Jay-Z on Saturday Night Live March 9, the singer changed the lyrics from "Aww, sh-t so sick, got a hit and picked up a habit" to "my hit's so sick, got rappers acting dramatic."

West, 35, trashed Timberlake's track on stage at the Hammersmith Apollo. "I got love for Hov, but I ain't f-cking with that 'Suit & Tie,'" the outspoken rapper told the crowd during a three-minute rant about the commercialism of popular music.

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The dis came as a surprise to fans, given that Kim Kardashian's boyfriend frequently collaborates with Jay-Z. The hip-hop heavyweights even released a joint album, Watch the Throne, in August 2011. West was recently ranked No. 7 on MTV's Hottest MCs list.

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While West may not be a fan of "Suit & Tie," former 'N Sync member Lance Bass can't get enough of Timberlake's mid-tempo jam. "I think it's something that no one expected him to do," Bass told Us Weekly in January. "I think everyone was expecting him to do a crazy [dance track], but he went back to his roots and I like it. It's very nice!"

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Timberlake's third album, The 20/20 Experience, is available March 18.

This article originally appeared on Usmagazine.com: Justin Timberlake Changes "Suit & Tie" Lyrics on Saturday Night Live, Disses Kanye West