Bowie's son, Duncan Jones, took to social media on Monday night to blast the singer's performance, which featured 10 of his father's most famous songs, with a cryptic tweet.
"overexcited or irrational, typically as a result of infatuation or excessive enthusiasm; mentally confused." Damn it! What IS that word!?— Duncan Jones (@ManMadeMoon) February 16, 2016
Jones posted the dictionary definition of the word "Gaga" on Twitter.
"'Overexcited or irrational, typically as a result of infatuation or excessive enthusiasm; mentally confused.' Damn it! What IS that word?!" he tweeted.
Jones issued his tweet around the same time Gaga, 29, donned a rather risqué ensemble as she celebrated the night away at Mark Ronson's afterparty at Elyx House in Los Angeles.
Tommaso Boddi / Getty
The pop crooner wore a cleavage-baring red gown adorned with bold and intricate beading across her chest and down her torso. She accessorized her look with a pair of red platform sandals and a white, feathery jacket she kept draped over her shoulder.
But her biggest fashion call-out to the late legend? The Ziggy Stardust-inspired bright orange hair and the star lightning bolt painted over her left eye.