Paul McCartney makes surprise appearance at concert in the Hamptons

Through the years LONDON - FEBRUARY 15: Paul McCartney departs from the High Court on February 15, 2008 in London, England. Sir Paul McCartney and Heather Mills are attending the fifth day of a hearing to reach a financial settlement for their divorce. (Photo by Daniel Berehulak/Getty Images) (Daniel Berehulak/Getty Images)

By Jill Lances

And it seems like this won’t be the only collaboration we hear from McCartney and Watt. In an October interview Watt did with Rolling Stone about the The Rolling Stones record Hackney Diamonds, which Watt produced, he revealed he was also working on music with McCartney.