A little-known Scottish band is reaping financial rewards after one of its instrumentals was used in a series of American TV adverts.
Looper are now making an album which will be free to download
Looper have so far earned £500,000 in royalties from a simple electronic track which has become the signature tune of copying company Xerox.
The band, based in Glasgow, was originally formed by Stuart David, a founding member of Belle and Sebastian.
The tune, Mondo 77, has also been used in films, including Vanilla Sky.
Stuart David said: "It started off in the Vanilla Sky film because Tom Cruise was a fan of the song and they were playing it on the set. After that I think Xerox picked it up from there.
"The four of us have been able to live on this song for the last five years."
The band are currently working on an album which fans will be able to download from their website for free.
"Our main ideal is giving the songs away free to people. Because we can make money from the films and adverts that takes care of having to make money from it," Stuart added.
He said: "We don't sell any records anymore.
"I am pleased that Looper didn't take off in a big way - it's not good for you in the long run, I don't think.
"I can only think of two or three fans we've ever heard from off the back of the Xerox ad."
He added: "It (Mondo 77) brings in enough money for us to have been able to treat it as being our job."