It was a big birthday celebration, on Saturday at the Blasco Library, and it was all for Clifford the big red dog!
Clifford turned 50 years old this year, and hundreds of people came out to celebrate.
Kids and parents alike got in the spirit by dressing up like the character, and event organizers say Clifford is so popular, because he's spanned so many generations.
Clifford, by the way, turned 50 in dog years, that's 350 in human years.