They're both alternative rock legends who have suffered through internal band turmoil and extended periods of inactivity, but that isn't all Pixies and Weezer have in common. For proof, just listen to Pixies' 1989 song 'I Bleed' side-by-side with Weezer's early hit 'Undone - The Sweater Song.'

Both powered by a loping beat and foreboding, off-kilter melody, 'Bleed' and 'Sweater' also share a very similar chord progression, as evidenced by the clips embedded below. Of course, they aren't the only songs that use this progression -- in fact, 'The Sweater Song' has also been compared to the rock classic 'Wild Thing,' and Weezer frontman Rivers Cuomo has said he lifted it from Metallica's 'Welcome Home (Sanitarium)'.

Wherever Weezer took their inspiration from, there's no denying Pixies were one of the most heavily influential bands of the early alt-rock era, or that a long list of acts -- including Nirvana -- lifted liberally from their songbook. In other words, sounding like a Pixies song is nothing to be ashamed of.

Have a listen to the two clips below, and see what you think. Was Weezer listening to a lot of 'I Bleed' when they came up with 'Undone - The Sweater Song,' or is it all just a big coincidence?

Listen to Pixies, 'I Bleed'

Listen to Weezer, 'Undone - The Sweater Song'