Despite a pointed jab at her expense on Fashion Police's return Monday, former cast member Kelly Osbourne congratulated new host on Melissa Rivers in a tweet.

"Congratulations on an awesome show tonight!" Osbourne, 30, told Rivers, 47, who took to the air Monday with co-hosts Giuliana Rancic and Brad Goreski after a six-week break.

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Rivers, who's also the show's executive producer, gushed over the well-wishes, and complimented Osbourne on the job she did working the MTV Video Music Awards a night earlier.

"I love you!!! The flowers are amazing and you owned the lavender carpet! Xxx #friends #mysister," she wrote.

As Breaking Celebrity News previously reported, Osbourne did not escape the show unscathed, as a bit that aired showed Rivers cleaning up the room and finding purple and red hair, an obvious reference to Osbourne and the also-departed Kathy Griffin.

She added, "And well, I'm still cleaning up messes, but the good news is Fashion Police is back!"