Watch the Moment Tom Petty’s ‘I Won’t Back Down’ Is Revealed as WBLM’s 4 Millionth Song

WBLM finally hit another major milestone: 4 million songs!

Watch the moment when 13-year-old Sam Seekins of Oakland helped Guru make the big reveal.

That's right, Tom Petty's "I Won't Back Down" will go down on the books as the 4 millionth song. What an incredible moment in Blimp history!