Complex sentence: Mathes has also produced many other artists including Panic! at the Disco, The Young Veins, Beth Hart, Bettye LaVette, Carly Simon, Rod Stewart, Vanessa L. Williams, Michael Cavanaugh, and Melissa Errico.
Split into simpler sentences: Mathes has also produced many other artists including Panic! At The Disco, The Young Veins, Beth Hart, Bettye LaVette, Carly Simon, Rod Stewart, Vanessa L. Williams, Michael Cavanaugh, and Melissa Errico.