One of his biggest hits came in 2013 with the folk-tinged "Wake Me Up," with soul singer Blacc on lead vocals.

Blacc didn't know about "SOS" until January when he was asked to sing on it.

So we've got Berry Blacc coming through for us and I think he's really going to be big.

The evening included speeches from Emma Stone and Matthew Barney along with a musical performance by Aloe Blacc. The sold-out gala raised $2.5 million dollars.

Other artists in attendance at Tuesday's event included Diane Warren, Ric Ocasek, Nathan East, Aloe Blacc, ''Weird Al'' Yankovic and Sheila E.

It launched a campaign on social media on Wednesday to raise $64 million (51 million euros) to keep the programme running, supported by Aloe Blacc, who released the hit song I Need A Dollar in 2010.

The countdown, narrated by Craig Charles, also talks to celebrity fans like Dionne Warwick, Aloe Blacc, Gabrielle, Michael Bolton and James Morrison.

Singer Aloe Blacc co-wrote and performed which hit song which reached No 1 in more than 20 countries in 2013?

- Debut at Vevo UpFront Presentation with Artist Aloe Blacc In a Collaboration for His New Video, "The Man"