Not all are impressed with Lady Gaga’s tribute to the late David Bowie at the recent Grammy Awards – one of those is Bowie’s son.

Gaga took to the Grammys stage on Monday, sporting a Ziggy Stardust-inspired ensemble and performing a medley of the legendary singer’s hits including “Space Oddity,” “Changes,” “Ziggy Stardust,” “Suffragette City,” “Rebel Rebel,Fashion,” “Fame, Under Pressure,” “Let’s Dance” and “Heroes,” USA Today reported.

However, Bowie’s son, Duncan Jones, was not impressed with Gaga’s homage and expressed his disappointment shortly after the “American Horror Story” star’s performance.

Jones shared on Twitter the Oxford English dictionary definition of the word “Gaga.”

“Overexcited or irrational, typically as a result of infatuation or excessive enthusiasm; mentally confused.’ Damn it! What IS that word!?” the British director wrote.

It is not clear if Gaga has seen the tweet.

Last month, Bowie passed away following a long-time battle with cancer.

NBC News noted that the six-time Grammy winner did not only pay tribute to Bowie through her songs but also had a tattoo of the legend on her rib cage prior the awards night.

Lady Gaga also shared her emotions and shed some tears while preparing for the tribute to Bowie.

The “Bad Romance” hitmaker shared on Instagram how overwhelmed she is with emotion as she applies Bowie-inspired makeup in preparation for the awards night on February 15.

She uploaded videos of herself applying glittering blue eye shadow as a tribute to the blue suit Ziggy Stardust. What truly makes the video remarkable is when it captured the moment when a single teardrop rolls down her cheek.

The world loves you David.

A post shared by xoxo, Gaga (@ladygaga) on

It was previously reported that Lady Gaga’s Grammys performance was not supposed to be a dedication to Bowie. Upon learning that the renowned actor-musician died, however, Gaga decided to change it to a tribute solely for the revolutionary rock legend.

According to the DailyMail, the singer is one of the many musical artists influenced by the legendary pop icon. She is reputed for wearing the most outrageous of outfits, obviously heavily inspired by Bowie who is also known to put on elaborate costumes.