Lady Gaga Reportedly Performing With Metallica At The Grammys

For a little while, the Grammys were planning to include a live-onstage collaboration from a Tribe Called Quest, Anderson .Paak, and Dave Grohl. That would've been pretty weird! Grammy producers have canceled that plan, but they've come up with something just as weird: Idolator reports that Sunday night's show will feature Lady Gaga duetting with…