Cristiano Ronaldo sings karaoke song about sex at his birthday party just hours after Real Madrid were thrashed by Atletico Madrid 4-0

The world's best player can also hold a tune it seems

Kevin Roldan and Cristiano Ronaldo belting out a tune at Ronaldo's birthday party (http://instagram.com/kevinroldankr)

Cristiano Ronaldo put Real Madrid's 4-0 thrashing by Atletico Madrid and his recent break-up with Irina Shayk behind him by singing karaoke during his 30th birthday party on Saturday night, which took place just hours after that shock defeat by Atletico.

The world's best player wore a sparkly gold hat for the party at the 'In Zalacain' restaurant in the La Finca region, and got on stage with record producer Kevin Roldan to sing his Roldan's 2014 hit "Si Tu No Te Enamoras", featuring the suggestive lyrcis: "I only want something sexual and if you don’t fall in love we can spend a couple of hours together".

The party was also attended by Real team-mates James Rodriguez, Marcelo and Luka Modric.

Watch: Ronaldo turns crooner at his party

Ronaldo turned 30 on Thursday, and the party had been planned since midweek - although many of the Real players stayed away from the celebrations after their humiliating loss hours earlier.

Real manager Carlo Ancelotti had labelled the Atletico thrashing the worst defeat of his career at Real.

"I need to have a cool head to analyse what happened. I accept responsibility, it was the worst game that we have played since I have been here," Ancelott said.

"It is very simple, Atletico deserved to win because they were better than us in all areas. They fought more, they had more intensity and their play was better...everything.

"I am sorry. We are going to have to change our attitude and make sure it doesn't happen in another game. We made a lot of mistakes and we were always second to the ball."