What a night for James Corden!

The 38-year-old Late Late Show with James Corden star hosted the 2017 Grammys on Sunday, Feb. 12 — and stumbled through a hilarious opening dance number that went totally wrong!

james corden grammys getty images

James during his Grammys opening on Feb. 12.

After seemingly suffering through a stage malfunction and then falling down a long flight of stairs, James stopped his ill-fated entrance and exclaimed, “This is a disaster! We cannot allow these sort of mistakes, this is the Grammys people!”

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James then told his dancers to leave the stage and jumped into a Hamilton-style rap about the night’s biggest stars including Beyoncé, Lady Gaga, and Bruno Mars — so fun!

Watch James’s Grammys opening in the video below!