According to the Hollywood Reporter, in an interview ahead of her halftime performance, the Grammy winner Rihanna said she first thought twice about performing at the Super Bowl, but motherhood ultimately inspired her to perform at the big game.

“I was like, ‘You sure? I’m three months postpartum. Should I be making major decisions like this right now? I might regret this,’” she said.
Hollywood Reporter
“When you become a mom, there’s something that just happens where you feel like you could take on the world — you can do anything,” she added. “And the Super Bowl is one of the biggest stages in the world, so as scary as that was…there’s something exhilarating about the challenge of it all,” she said. “It’s important for my son to see that.”
She also said fitting her 18-year catalog into a 13-minute set was tough.
“The setlist was the biggest challenge. That was the hardest part — deciding how to maximize 13 minutes and celebrate. That’s what the show’s going to be — it’s going to be a celebration of my catalog in the best way,” she said. “I think we did a pretty good job narrowing it down.”
