Performing at the Super Bowl has cost Beyonce a few weeks of productivity because her big gig on 3 February (13) left her too excited to return to the studio.

The R&B superstar dazzled the world with a half-time spectacular at the sporting event in New Orleans, Louisiana - which included a brief Destiny's Child reunion - and she admits she's still coming down from the high of the show.

She tells U.S. news show Access Hollywood, "It's gonna take me a few more weeks to come back to earth. I tried to go into the recording studio and I'm like, 'What am I doing here?' I need to just chill and try to enjoy all of that crazy work I did."