Complex sentence: Her second studio album, entitled "My Best Friend Is You" was released in the United Kingdom on 19 April 2010 and in the U.S. on 11 May 2010, and spawned her second biggest chart hit to date "Do-Wah-Doo".
Split into simpler sentences: Her second studio album, entitled "My Best Friend Is You", was released in the United Kingdom on 19 April 2010 and in the U.S. on 11 May 2010. It spawned her second biggest chart hit to date, the single "Do-Wah-Doo".