Will Ferrell and John C. Reilly surprised Snoop Dogg with an onstage birthday serenade last weekend.The actors joined the rapper for the Best Night of Your Life 2 benefit show on Saturday (October 21) to perform ‘Boats ‘N Hoes’, the track sung by Dale and Brennan in the 2008 comedy Step Brothers.They then sang a verse of Snoop’s 1994 track ‘Gin and Juice’, before Reilly took the microphone to make an announcement to the Los Angeles’ Greek Theatre.“Yesterday was a very special day,” Reilly said, via a video to shared to Snoop’s Instagram, which he captioned: “My brothers surprised me.”“It was Mr Snoop Dogg’s birthday.