"Secret Agent Man" is a song originally performed by Johnny Rivers that is covered by The Chipmunks in the Alvin and the Chipmunks episode The Chipmunk Who Bugged Me.
Lyrics
The Chipmunks:
There's a man who leads the life of danger
To everyone he meets he stays a stranger
And every move he makes
Another chance he takes
Odds are he won't live to see tomorrow
Secret Agent Man
Secret Agent Man
They've given you a number and taken 'way your name