https://www.anyonecanplayguitar.co.uk/beginners/
13. Wilco - California stars
To play the song you need the G, D, and C chords. Just play 2 bars (or 8 beats/strums) on G, 2 bars on D, 2 bars on C, and 2 bars on G again. This 8 bar chord progression then just repeats for the entire song.
https://www.youtube.com/watch?v=gxzMbAMO73k
Good strumming pattern: Down Down Down - up Down - up
14. Two useful strumming patterns
Down Down - up Down - up Down
Down Down - up skip - up Down