The '4 Minutes' singer has used her sizeable influence to help the Brazilian model launch a pop career, and has even agreed to allow her former label Warner Brothers to use some of her iconic back catalogue in adverts in return for signing him.

Jesus' first single, entitled 'We Came From Light', will be released in the summer - the same time a handful of Madonna's classic songs, including 'Vogue' and 'Like A Prayer', will be licensed for a major advertising campaign in the US.

A source said: "Madonna was determined to give Jesus all the help she can. She holds a lot of sway at Warners, where she had a deal until very recently. But getting him on the books wasn't completely plain-sailing. There was a little give and take between her and execs, but a compromise was eventually settled upon."

The 51-year-old pop superstar – who has been in an on/off relationship with 23-year-old Jesus for over a year – has also drafted in the expertise of the legendary house music producer Victor Calderone.

The source added to The Sun newspaper: "Madonna really wants Jesus' career to take off. She's been going through her Filofax and putting him in contact with as many of her influential pals as she can.

"She's worked with Victor for a very long time and he understands just what she likes. Having him work on Jesus' tracks will give them a cool cachet which is essential to building a clubland buzz."