Roger Federer appears alongside Elmo in a new Super Bowl commercial for the running shoe brand, On, that has them debating ...

Watch as Elmo sits in an umpire's chair and debates the two letters found on Federer's On-branded sneakers: Is it 'Q' and 'C' or 'O' and 'N'?

Roger Federer and Elmo from Sesame Street seem to disagree on the letters of the alphabet in a Super Bowl ad for ON running shoes.

Animation and songs with Cookie Monster and Elmo and fun film segments reinforce each letter, to make Learning Letters With Elmo easy as ABC!

Are you up for an alphabet challenge? Abby shows off her new Fairy Fly Pad, but accidentally traps her friends inside the video game world! LEARN: ...Alphabet, Letter Sounds, Vocabulary What's new ...