Duncan Jones is likely not a Lady Gaga fan. That would explain his blatant diss expressed via social media, following Lady Gaga’s tribute to his father, the late David Bowie, at the Grammy Awards on Monday night.

Bowie’s son, Duncan Jones, wasn’t exactly flattered with Gaga’s performance. https://t.co/7783MC3fou

— CBS Philly (@CBSPhilly) February 17, 2016

Lady Gaga wore a costume likely inspired by Bowie’s Ziggy Stardust. She sang a few of David Bowie’s hits including “Space Oddity,” “Let’s Dance,” and “Changes.”

Duncan Jones took to Twitter following Lady Gaga’s performance.

"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

What is that word? The word is “gaga.” Duncan Jones tweeted the Oxford English Dictionary’s definition of the word.

Did David Bowie's son Duncan Jones diss Lady Gaga's #GRAMMYs tribute? https://t.co/oRCgJyouZi pic.twitter.com/r0Pi6J4Bnj

— Us Weekly (@usweekly) February 16, 2016

That said, he likely either isn’t a fan of Lady Gaga or simply didn’t think she did an appropriate job of paying tribute to his late father.

Duncan Jones is David Bowie’s son with ex-wife Angela Bowie. Bowie also has a daughter, Alexandria, with wife Iman.

Wow! David Bowie's son Duncan Jones makes a clever slam on Lady Gaga's #GRAMMYs tribute https://t.co/eYlkPc2UhZ pic.twitter.com/XmjNjv9nmz

— Zap2it (@Zap2it) February 16, 2016

Did you see Lady Gaga’s tribute to David Bowie at the Grammys on Monday evening? Did you like her performance or do you agree with Duncan Jones’s inference that the tribute wasn’t quite up to par?