United Kingdom, July 11 -- Benny Blanco "can't remember" the songs he's worked on.

The 37-year-old producer has confessed to using the Shazam app to find out details of some music he hears, only to then discover it was a record he had been a part of creating.

Speaking on Therapuss, he said: "The first, like ,big pop thing that I ever worked on was Britney Spears. Sometimes I am in a restaurant and I'm like, 'Oh my god, this song's so good.' And I Shazam it, and then it's my own song.

"I'm old and I can't remember anything. And I've done like hundreds of songs that have come out."

Benny - who has worked with the likes of Kesha, Katy Perry, Ed Sheeran and Rihanna over the years - noted he had been "making songs for 16 years" and compare...