Grammys 2015 kicked off on Sunday at 8pm EST, and the audience got fired up with the first performance by ACDC.

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On Sunday night, ACDC lit up the stage and rocked out so hard that the entire audience was on their feet.

The most notable song from their set list was the ever-popular Highway to Hell. Even pop-singer Lady Gaga was on her feet and dancing hard to the song.

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Fire lit up the background of the stage as the band jumped around, sang hard into their microphones and held the mics out for the audience to join in.

ACDC ended with a bang -- literally -- as the lights, drums and crowd all ended abruptly.

Gaga seemed emotionally moved by the performance and could be seen mouthing, "That was amazing," after the performance.

Watch the full performance below -- LL Cool Jay called it "devilishly good."

Tags: Grammys Performances ACDC