Complex sentence: The band's second UK LP-- "The Rolling Stones No.2", released in January 1965, charted at number 1 as an album, and the US version, released in February as "The Rolling Stones, Now!", reached number 5.
Split into simpler sentences: The band's second UK LP, "The Rolling Stones No.2", was released in January 1965 and reached No.1 in the charts. The US version was released in February as "The Rolling Stones, Now!" and reached number 5.