I think he meant "La Boheme", but that's not it. I believe the music in the commercial in question is from the operetta "I Pagliacci", by Ruggiero Leoncavallo, I heard part of the commercial once so I'm not totally sure. It's probably the aria "Vesti la Giubba" (On With The Motley).
To perform! With my heart maddened with sorrow.
I don't know what I'm saying, or what I'm doing.
Still, I must face it! Courage my heart! Bah! You're not a man;
(laughs mockingly at himself) You're a clown!
On with the motley, and the paint and the powder!
The people pay to see you, and want their laugh, you know!
If Harlequin has stolen your Columbine, laugh clown!
The world will cry, "Bravo!"
Go hide your tears and your sorrow!
Sing and be merry playing your part. Aaah--
Laugh clown!
For the love that is ended.
Laugh for the pain that is eating your heart!
(english translation)