Complex sentence: The Wonder Stuff were formed in March 1986, and soon built up a huge following and entered the studio in September that year to record a self-financed first E.P. "A Wonderful Day".
Split into simpler sentences: The Wonder Stuff were formed in March 1986, and soon built up a huge following. They entered the studio in September that year to record a self-financed first E.P. "A Wonderful Day".