Following a discussion with National Academy of Recording Arts and Sciences (NARAS) president Neil Portnoy last night, he said, "She will take us through quite a bit of history of David Bowie's repertoire,It's one of the longest, larger segments of the night."
He also claimed, "There's some very exciting brand new technology that's never been seen on television that will be a part of the segment."
Portnoy said Gaga "popped into my head pretty quickly" when he first thought of the idea of a Bowie tribute, but he wasn't sure she would be up for it after an extremely busy (yet accomplishing) year so far.
Fortunately, "she really wanted to do it and it worked out," he said.
Tune in to the Grammy Awards tonight with red carpet starting at 6/7c on CBS. Coverage starts at 4pm.