Get ready to be hearing lots of ‘T.H.E. (Hardest Ever),’ a song off '#willpower,' the new solo album by singer of the pop group Black Eyed Peas. The track features none other than Rolling Stones singer Mick Jagger singing a verse, plus additional vocals from pop artist Jennifer Lopez.

This tune is obviously targeted at fans of the Black Eyed Peas' distinct brand of quirky, glitzy, bass-thumping pop, and ‘T.H.E. (Hardest Ever)' is definitely not a rock song. That said, we still can't help but wonder what Jagger was thinking in taking part in this monstrosity.

We don't expect his rapped vocals -- "Hard like geometry / And trigonometry / This is crazy! / Psychology" amongst them -- to be poetry, but the whole thing just seems ill conceived and overall pointless.

You may remember the Black Eyed Peas from this year’s disappointing Super Bowl halftime show, after stellar halftime gigs in recent years from the likes of Bruce Springsteen, Tom Petty and the Who. Slash also appeared with the Peas this year, but even the Guns N’ Roses legend couldn’t save that mess.

Jagger previously hooked up with U2 plus and Fergie of Black Eyed Peas as a surprise guest singer at the the Rock and Roll Hall of Fame's 25th Anniversary Concert in New York, for a run through of the Stones classic, ‘Gimme Shelter.’ Watch video of that stellar performance here.

Come to think of it - that took place at the same show which featured Metallica and Lou Reed rocking together for the first time, on the Velvet Underground classic 'Sweet Jane.' It was that performance which inspired the combo's ill-fated 'Lulu.' Maybe those crazy Hall of Fame performances are more dangerous than we thought.

Listen to's 'T.H.E (The Hardest Ever) (featuring Mick Jagger & Jennifer Lopez)' here: