Ronaldo marked his return to Manchester United with two goals against Newcastle on his second debut for the Red Devils.
Before the game, he was made to address his new colleagues on Friday evening.
According to Mirror newspaper, but he snubbed the teams usual initiation ritual.
Solskjaer revealed he had given a speech at the The Lowry Hotel the night before the match and The Athletic report that Ronaldo thanked his team-mates for their warm welcome.
But after being asked to sing a song as every new squad member does, the five-time Ballon d’Or reminded people that he had already performed the ritual 18 years ago when he joined from Sporting Lisbon.