The Late Movies: Guess The Theme IV

By Mark Arminio

It's Thursday night, which means that it is time for everyone's favorite game: GUESS THE THEME! In the comments, take your best guess at what the clips have in common.
Mumford & Sons - The Cave
Pinback - Fortress
No Doubt - Spiderwebs
Warren G featuring Nate Dogg - Regulate
Rush - The Trees
Starsky & Hutch Theme Song