There were two big mistakes at the Grammys last night.

The first one happened during Adele's tribute to George Michael.  She was singing his '90s hit "Fastlove," but it wasn't going too well, so she and said, "I f**ked up. I can't do it again like last year.  I can't mess this up for him."  She then started over and pretty much nailed it.  And the crowd was with her 100%.

Adele had sound issues at last year's Grammys, too.  And when she went on "Ellen" after the show, she said the next time that happened, she would stop and start over.  She's a woman of her word!

Then there was the Metallica/Lady Gaga duet which everyone was looking forward to with cautious optimism.  They performed Metallica's "Moth Into Flame," but there was one glaring issue: James Hetfield's microphone didn't work for the first few minutes of the song!

He and Gaga were supposed to be trading verses, but his audio was non-existent.  So it came off really bad until they fixed it.  After it was over, James was so pissed, he threw his guitar offstage.

More From 97.9 WGRD