The 27-year-old suffered technical difficulties during her performance at the 2016 Grammys – and while she played it off well, she recently admitted that she was really "embarrassed" about it.
"I cried pretty much all day yesterday," the singer admitted on The Ellen DeGeneres Show. "I kept spontaneously bursting into tears."
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According to the powerhouse singer, she was aware of the mic issues the minute she started singing, but there was nothing she could do in the moment.
"During changeover and the ad break, the microphones fell onto the piano strings, which is what the guitar noise was – some people thought it was [Justin] Bieber rehearsing but it wasn't him," she said. "And it just kinda put the whole thing off, really."
"I knew where the mic was and I wanted to turn around and lift it up, but I froze," she continued. "But I actually felt like it went well ... I'm always a bit pitchy anyway."
The good news is that now Adele feels less pressure when performing.
"The more successful I get the more pressure there is really," she said. "I don't feel like it could go that much worse than the Grammys though, so I feel like I'm alright now."