Original sentence: In 2008, dance shows included 'I Hear America Singing' a mix of new pop songs and 'Summer Cruisin' a mish-mash of 1950s and 1960s music.The Plain White T's attracted a very large young crowd
Edited sentence: In 2008, dance shows included 'I Hear America Singing' a mix of new pop songs and 'Summer Cruisin' a mish-mash of 50's and 60's songs.The Plain White T's attracted a very large and happy young crowd