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The 36-year-old Gavin and Stacey star will be taking over from Craig Ferguson, who is leaving the show in December after 9 years as the host.
Corden excitedly tweeted a thank you to his fans for all of their support.
" Thanks everyone for your incredibly kind messages about my new job hosting The Late Late Show on @CBS. I hope I do you all proud. X" he wrote.
Corden also thanked Craig, the current host of The Late Late Show. "Thank you so much Craig. That's truly made my day. You are a true gent and a tough act to follow! X" he gushed.
Corden has had experience hosting before, having worked on Sky sporting panel show A League Of Their Own as well as having hosted The Brits, but will really busy working on the show, which airs every weekday in the US.
READ: James Corden and wife expecting second child
It is not yet known when Corden will start but James, who is expecting his second child with wife Julia Carey, has a lot to be excited about.
"I can't describe how thrilled and honoured I am to be taking over from the brilliant Craig Ferguson" he said in a statement.
"To be asked to host such a prestigious show on America's number one network is hugely exciting. I can't wait to get started, and will do my very best to make a show America will enjoy".