If Michael Jackson's memorial brought tears to your eyes yesterday, you certainly weren't alone. Emotions ran high throughout the ceremony (even Mariah Carey was choking back sobs!), and tons of celebs took to their Twitters to commemorate the passing of one of music's greatest superstars.

Needless to say, Michael's fellow artists were among those hit hardest by his passing. Among those grieving in the pop community? Danity Kane's Dawn Richard and Aubrey O'Day, and Day26's Willie Taylor (borrowing a few words from Tyrese Gibson). After the jump, read their final farewells and feel free to add your own in the comments!

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While Lauren, Whitney, Audrina are clearly the belles of the ball at the live Hills premiere here at Gotham Hall in New York, we're not gonna lie -- musical guest Mariah Carey is queen of the night. Backed by a live band, four dancers (America's Best Dance Crew hopefuls, take note!) and three back-up singers, an undeniably emancipated Mariah held the crowd captive in all of her resplendence and glittery glory. (Literally -- her microphone and stand were bedazzled in enough ice to keep the bar covered all night.) Mimi was totally rocking envy-inducing Barbie-meets-Miss-America hair and show-stopping hourglass curves (in what looked like a Hervé Léger bandage dress, but we can't be sure).

And the vocals? More on point than that time Lauren showed Heidi the door. "We Belong Together" was so beautiful it was like waking up inside of a perfect dream. When Mariah dropped her new single, "Touch My Body," believe that all eyes -- and, yes, cameras -- in Gotham were glued to the glamstress, who looked like 2008 Mariah (i.e. -- the hottest she's ever been in her impressively long career) but busted out those high notes like it was 1990 all over again. And Mariah's sexy, soulful rendition of "I'm That Chick" (you didn't see it on air, but you can watch it live, exclusively on MTV.com tomorrow) was the perfect ending to a night of glamour that's all about our favorite females.