Muni Long is blasting critics and revealing Mariah Carey's review of her tribute performance at the iHeartRadio Music Awards. The GRAMMY-winner's reaction comes after fans noticed Mariah's seemingly shady facial expressions from the front row of the award show, which aired live on Fox on Monday. In a social media video, Muni shared that Mariah asked her to participate in the tribute and praised her performance backstage. Mariah also gave love to Tori in a group photo posted to Instagram. More from Entertainment Tonight: / @entertainmenttonight Exclusives from #EntertainmentTonight : • NEW From Entertainment Tonight