How Do I Shift My First Beat Of A Video

I’m working with a piece of video and I want my video timeline in sync with my metronome. The music doesn’t start right off the bat but begins in what seems like an odd place if you are listening to the metronome or looking at the bar line at the top. I need to move beat 1 of the first bar to my starting point. How do I do this? Thanks!

Awesome! Thanks!!!