Jennifer Lopez stepped out to dinner on Thursday evening, Oct. 9, in super-chic separates, including a crisscrossed crop top that put the “Booty” singer’s incredibly toned abs on display. But she made a trip to the gym before treating herself!

Lopez, 45, started Wednesday, Oct. 8, by working up a sweat with celeb trainer Tracy Anderson. The mom of two revealed her chiseled stomach muscles en route to the studio while hitting the West Hollywood streets in a lavender sports bra and black leggings.