Track 1 is the Klaxons' take on the classic 'Not Over Yet', a classic dance anthem by Grace/Planet Perfecto (Paul Oakenfold and friends in fact). It couldn't really be that different from the original. Instead of a trance track, we have a much more indie sounding version (new rave in fact, sort of a indie/dance clash) with guitars more emminent, a male vocal rather than a female one and a siren.
Track 2 is a cover of Justin Timberlake's 'My Love' taken from their BBC Radio 1 Live Lounge session. This is surprisingly good, and interesting to hear the song done with an acoustic guitar, piano and drums.
If you've not heard the Klaxons before, this is a good track to start with. If you like this, try 'Golden Skans' or for something more different, 'Atlantis to Interzone', both from the album 'Myths of the Near Future'.