Bill Nye Saves the World trailer: He's back with Rachel Bloom, Joel McHale

"It's not rocket surgery, it's science!"

Bill Nye the Science Guy is back in a new Netflix series, and he's not alone: The first Bill Nye Saves the World trailer previews a celebrity guest roster that includes Crazy Ex-Girlfriend creator-star Rachel Bloom, Zach Braff, Joel McHale, Salt Lake City Stars basketball player Diamond Stone, Tim Gunn, Donald Faison, Wil Wheaton, and electro house DJ Steve Aoki.

And it looks like Bloom is bringing a special science-themed performance pegged to the topic of sex, one of the many subjects tackled on Bill Nye Saves the World. Others include global warming (which Nye is particularly passionate about), GMOs, technology, and alternative medicine.

Fashion model Karlie Kloss, Xploration Outer Space producer Emily Calandrelli, UCB comedian Joanna Hausmann, scientific YouTube personality Derek Muller, and Legally Brown star Nazeem Hussain also feature.

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"I'm Bill Nye and I'm here to — dare I say it — save the world," the host shouts. Cue the "Bill! Bill! Bill! Bill!"

Bill Nye Saves the World premieres on Netflix April 21. Watch the trailer above.