Los Angeles: Hollywood star Ryan Reynolds sang a high-pitched cheeky birthday song for Australian actor Hugh Jackman, who celebrated his 51st birthday.
Taking to his social media, Jackman wrote, "At first I thought - Ugh, now I have to actually apologize. But then," alongside a clip of Reynolds.
"Hello Hugh, I was just going to wish you a happy birthday... And then I saw what you said, and in a word... hurtful, enjoy the show.. Hugh Jackman," Reynolds said in the video.
The Deadpool star then began to start singing Happy Birthday.
He concluded the clip saying, "And I'm not f**king professionally trained you Jackman you piece of sh*t."
Reynolds took to his own Instagram account to wish Jackman a cheeky birthday message, putting a cake sticker over the Wolverine's star's face.
Jackman hit back re-posting the birthday snap with an animation of Judge Judy Sheindlin rolling her eyes on top of Reynold's face.
On the work front, Reynolds recently appeared in Fast & Furious offshoot Hobbs & Shaw and has the Michael Bay's Netflix action film 6 Underground in his upcoming credits along with The Hitman's Wife's Bodyguard.
Reynolds will be making his digital debut with 6 Underground which is set to stream on Netflix on December 13.
6 Underground is set to follow six billionaires who fake their deaths following which they form a vigilante squad in order to take down notorious criminals.
The movie also stars Melanie Laurent, Payman Maadi, Corey Hawkins, Adria Arjona, Manuel Garcia-Rulfo, Ben Hardy, Lior Raz, and Dave Franco.