Elton John isn't finished with Madonna yet. 

After scoffing at her chances of winning a Golden Globe for best original song on the red carpet Jan. 15, saying the Queen of Pop "hasn't got a f--king chance," (she ended up taking home the trophy), John is still taking jabs at his long-time rival.

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During an interview to promote his upcoming Super Bowl commercial for Pepsi with Good Morning America's Chris Connelly, John said he would never do a half-time show himself. His reason? "I've never seen a decent one. ... Never ever." 

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But, just because he hasn't done the show himself, doesn't mean he didn't have a little (sarcastic) advice for frenemy Madonna, who is this year's performer. "Make sure you lip-sync good," he snarked. 

The pair's feud began way back in 2004 when John accused Madonna of lip-syncing during her concerts and award show appearances. 

Watch his GMA segment below