Celebrity IOU: Season 1

Brad Pitt recruits Drew and Jonathan Scott to help him surprise his friend and makeup artist of 30 years by renovating her detached garage. They turn her 400-square-foot unit into a showstopping guest suite, makeup station and storage area.

Melissa McCarthy heads to Chicago to give back to her aunt and uncle, both retired cops. Melissa creates an upstairs retreat where her aunt can cook and entertain, and a downstairs man cave equipped with all the comforts her uncle deserves.

Viola Davis heads to Minneapolis to surprise her best friend of 30 years with a home renovation where Jonathan and Drew create a peaceful sanctuary.

Singer Michael Bublé pays tribute to his grandfather by fulfilling his final wish, to provide his caretaker with a place to live. Michael calls on Drew and Jonathan Scott to help him renovate his grandfather's house before surprising her with it.

Rebel Wilson's newly married hairstylist and best friend spent her savings to buy a home, leaving the couple with barely any money to renovate the backyard. Rebel works with Drew and Jonathan to turn the arid space into an oasis.

Actor Jeremy Renner is moving his mother to Los Angeles to be closer to her family so he calls on Drew and Jonathan Scott to transform her dated condo into a modern-meets-cozy oasis.