Canadian rock veterans Sum 41 have dropped their fifth album and relative newbies Jonas Brothers are on to round two. We've got the 411 on both albums.

Sum 41 - Underclass Hero

Sum 41's fifth studio album, Underclass Hero, has just hit shelves and has already broken into Billboard's top 10. The pop-punk album breaks away from Sum 41's younger, rawer sound, but struggles to replace it with a cohesive new one. The one standout track is the ballad So Long Goodbye, which is bound to get a ton of radio play. However, Sum 41's copycat sound (think Blink-182 meets The Black Parade meets lame) is mostly disappointing.

Sum 41 - Underclass Hero Fun Facts

The title Underclass Hero is in reference to John Lennon's hit song, Working Class Hero.

This is Sum 41's longest album to date (49 minutes).

This is the first Sum 41 album to be released without guitarist Dave Baksh, who left the band in 2006.

Sum 41 - Underclass Hero Hot Tracks

So Long Goodbye

Sum 41 - Underclass Hero Rating:

Jonas Brothers - Jonas Brothers

The Jonas Brothers' sophomore album shows a more polished side of the Jonas boys, compared to their first album It's About Time. Their sound is parent-friendly (no trash talking from these Christian boys) and catchy. If you're a rock devotee, these guys could be too tame for your tastes, but if you're looking for the male equivalent of Hannah Montana, you've just found your boys!

Jonas Brothers - Jonas Brothers Fun Facts

The song Year 3000 is on both the Jonas Brothers' albums.

The Jonas Brothers will be touring with Miley Cyrus to promote their new album.

The track Kids of the Future was featured in the Disney flick, Meet the Robinsons.

Jonas Brothers - Jonas Brothers Hot Tracks

S.O.S.; Year 3000; Still in Love With You

Jonas Brothers - Jonas Brothers Rating:

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