The internet was all a'twitter Monday after photos of the Red Hor Chili Peppers performing at Sunday's Super Bowl showed the band's instruments weren't plugged in; the drum kit wasn't even mic'd up either. Suddenly it became very obvious that the band was miming their performance.

Bassist for RHCP, Flea, issued an open letter to fans through the band's website explaining it all. Flea was upfront about the situation saying that they indeed "mimed" their performance. But, he explains, the NFL was very clear to them that event officials did not want to chance anything going wrong, insisting that the band pre-record their performance with only the vocals actually being live. Also, to that defense, weather conditions would have severely put the instruments out of tune.

Fleas writes:

"When we were asked by the NFL and Bruno to play our song 'Give It Away' at the Super Bowl, it was made clear to us that the vocals would be live, but the bass, drums and guitar would be pre-recorded," he wrote. "I understand the NFL's stance on this, given they only have a few minutes to set up the stage, there a zillion things that could go wrong and ruin the sound for the folks watching in the stadium and the T.V. viewers. There was not any room for argument on this, the NFL does not want to risk their show being botched by bad sound, period."

Take a look at the half-time show from Sunday's game:

Read more from Rolling Stone:

Red Hot Chili Peppers' Flea Explains Band's 'Miming' at the Super Bowl

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