Day, star of 'It's Always Sunny in Philadelphia,' makes his hosting debut on Sat., Nov. 5 with musical guest Maroon 5. This is Maroon 5's third appearance on the show.
On Nov. 12, Stone makes her second appearance as host. Coldplay will make their fourth appearance on the show was 'The Help' star's musical guest.
'How I Met Your Mother' star Jason Segel will host for the first time on Nov. 19 just in time to promote 'The Muppets.' Florence and the Machine will appear as the musical guest alongside Segel.
Tell us: Are you excited for Jason Segel to make his 'SNL' hosting debut?