Watch the Squeaks & Pops online guitar lesson by Brad Carlton from Chord Studies: Evolving Progressions Vol. 1
This is one of the most common progressions in pop music. It is a I - vi - IV -V in the key of E. When moving from the E to the C♯m, your third finger will act as a guide finger. It may sound squeaky but over time you'll be able to lift your fingers to eliminate squeaking.