Christina Aguilera cuts a cool look in black trucker hat as she heads to recording studio in Miami

Christina Anstead thanks ex Tarek El Moussa for letting her 'borrow' his mom Dominique for ski trip

Christina Aguilera Rocks $490 Gucci One Piece In Miami With Daughter Summer Rain, 6

Christina Aguilera, 40, takes the plunge in a VERY low-cut swimsuit showing off her ample cleavage