Mariah Carey will be a judge on 'American Idol' next season.

+ The interweb's been abuzz on who will fill the vacant "American Idol" judges' seats that Steven Tyler and Jennifer Lopez left, and we finally have confirmation that Mariah Carey will join the show next season. (MTV News)

+ Rihanna will appear on "Oprah's Next Chapter" where Oprah will interview RiRi in her home country of Barbados. Peep the teaser for the show. It airs Aug. 19 on OWN. (Rap-Up)

+ Lupe Fiasco is dropping by "RapFix Live" tomorrow. We'd bet his forthcoming Food & Liquor II: The Great American Rap Album will be one of the topics discussed. Also, if you have a question for the rapper, tweet @MTVRapFix. Catch him at 4 p.m. ET on MTV.com. (MTV News)

+ Rebecca Black revealed news about her debut record while attending "Teen Choice Awards 2012." "I am just finishing up an album right now," she said. She also shared her love for Ed Sheeran and The Black Keys. (Billboard)

+ Yesterday marked the one-year anniversary of Amy Winehouse's death. Nas, whose "Cherry Wine" features the late singer, told MTV News, "It's hard to talk about it because she's missed and she's one of a kind. I think it's a magic moment between us, me and her, and may she rest in peace and love." (MTV News)

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