The pair performed The Beatles' 'Get Back' on Friday night (July 31)
Lollapalooza runs at Chicago’s Grant Park from July 31 to August 2, with McCartney performing on the opening night for over two hours.
According to Consequence Of Sound, McCartney performed 31 songs in total, with Howard duetting on a rendition of The Beatles‘ ‘Get Back’.
Watch footage of Paul McCartney performing with Alabama Shakes’ Brittany Howard below.
Paul McCartney recently claimed that “dozens” of potential Beatles songs were lost as he and John Lennon would frequently forget their work before getting the opportunity to record it.
The bassist was talking to The Evening Standard about how new recording devices have fundamentally changed the songwriting process, revealing that songs he co-wrote with Lennon in the 1960s were often forgotten the morning after.
“Things have changed quite a bit,” said Sir Paul. “You’ve got recording devices now which change the songwriting process. For instance, John and I didn’t have them when we first started writing, we would write a song and just have to remember it.
“And there was always the risk that we’d just forget it. If the next morning you couldn’t remember it – it was gone. In actual fact you had to write songs that were memorable, because you had to remember them or they were lost! There must have been dozens lost this way.
“We didn’t have tape recorders. Now you can do it on your phone. So you would have to form the thing, have it all finished, remember it all, go in pretty quickly and record it. Now, because you can get things down on a device, I’ve got millions of things I want to record and do.”