Kanye West's Saint Pablo tour was the hottest date night in Los Angeles last night!

Celeb couples, including Pharrell Williams and his wife, Jessica Alba and Cash Warren, Hilary Duff and new beau Jason Walsh, Kylie Jenner and Tyga and more flocked to the The Forum in Inglewood, California, on Tuesday night to hit up Yeezy's headline-making concert.

Pharrell was beaming as he accompanied his pregnant wife Helen Lasichanh into the venue. The music man looked typically cool in his power clashing ensemble of several clashing camo prints, while Helen showed off her baby bump in a skintight top. She was glowing -- literally! The trendy duo confirmed they're expecting their second child in September.

Meanwhile, Hilary Duff and her new man Jason Walsh made things even more official by going public at the event.

Another twosome making a night of it was Jessica and Cash, who both wore wild prints (oof that jacket, Jess!) and matching slip on shoes for the rockin' show. We definitely weren't feeling the Honest Company honcho's blazer or her hubby's print shirt. Is that a lady's shirt, Cash?! Eeek!

But those weren't the only famous faces to hit The Forum! Jenna Dewan (who looked seriously sexy showing off her gams), Halsey (who had a wardrobe malfunction when she seriously showed off her butt), and John Mayer (glad he didn't run into Katy Perry at the concert last week!) were some of the other celebs who flew solo for the star-studded show.