By Kelsey Glein
Updated Mar 30, 2015 @ 3:15 pm
Jessica Biel Baby Bump

This mother-to-be is on the move. Jessica Biel went casual to attend a friend's party in Los Angeles over the weekend, where she once again showed off her relaxed, California-cool maternity style. For the outing, the star covered her pregnant tummy in a heather gray T-shirt, oversized knit cardigan, cropped pants, Robert Marc sunnies, and black embellished sandals.

Biel's outing came just days ahead of husband Justin Timberlake’s touching and hilarious speech at the iHeartRadio Music Awards last night, where he expressed his excitement about becoming a father.

"You can’t have innovation without creation, so finally, I want to thank my best friend, my favorite collaborator: my wife, Jessica, who’s at home watching," he said. "Honey, I can’t wait to see our greatest creation yet. Don’t worry. Daddy’s headed home right now to innovate by learning how to change a poopy diaper and get my swaddle on."