Here's how to play Basket Case by Green Day!
This song is in Eb tuning, so you need to tune your guitar to the follow notes to play along to this tutorial.
Eb tuning: Eb - Ab - Db - Gb - Bb - Eb (every string down 1/2 a step)
See a full video tutorial for how to tune down here
Get more help playing fast power chords and rock rhythm playing in Andy's Rock Rhythm guitar course