Complex sentence: As well, Matthews and the group toured extensively around the world plus they recorded a number of their own music albums, winning a Grammy Award in the category of Best Southern, Country, or Bluegrass Album.
Split into simpler sentences: As well, Matthews and the group toured extensively around the world. In addition, they recorded a number of their own music albums, winning a Grammy Award in the category of Best Southern, Country, or Bluegrass Album.