The Watchmen actress said that she spent a year following her rock star boyfriend around when he toured with his band, but refused to name the group.
She told Entertainment Tonight: "I was a groupie for a year and followed a band. I dated the drummer of the band.
"They were quite big - I can't tell who it is - but the experience of being on a tour bus and being backstage and watching them from backstage - that was my favourite rock 'n' roll moment. We were truly in love, it was crazy."
She continued: "I was 19 years old. I was young and living the life and having fun. I wasn't sharing him with other women - at least I don't think I was!"
Akerman is now married to Roberto Zincone, who is the drummer for The Petalstones - the band that she fronted for.
She added: "I do have a thing for drummers, I won't lie."