Lady Gaga delivered a powerful performance in memory of late music legend David Bowie at the Grammys on Monday - but not everyone was pleased.<br />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.<br />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 after party at Elyx House in Los Angeles.<br />The pop crooner wore a cleavage-bearing red gown adorned with bold and intricate beading across her chest and down her torso.