‘Saturday Night Live’ alum Will Ferrell with cowbell surprises son Magnus during his first live performance and plays cowbell

SAN DIEGO — Will Ferrell knew exactly what his son’s first-ever live show needed – a little more cowbell!

That’s why he appeared on stage with the instrument from his legendary “Saturday Night Live” sketch.

The moment of Magnus Ferrell’s performance at the Music Box in San Diego on Saturday night is spreading across the internet.

Rolling Stone reports that Magnus opened for the Psychedelic Furs at an event benefitting the Cancer for College charity.

The magazine says the charity was founded by Will Ferrell’s former roommate, Craig Pollard, and provides grants and educational aid to cancer survivors.

Magnus was performing an original song called “Back in Place” when his father surprised him on stage by ringing the cowbell.

Ferrell played the instrument in the famous SNL skit “More Cowbell” alongside actor Christopher Walken in 2000.