Complex sentence: The theme song was covered by many groups and people, including Postmodern Jukebox, Kurt Hugo Schneider with Lindsey Stirling, Eric Calderone, Baracksdubs, Tay Zonday, and Powerglove.
Split into simpler sentences: The theme song was covered by many groups and people. Others who have covered the theme song included Postmodern Jukebox, Kurt Hugo Schneider with Lindsey Stirling, Eric Calderone, Baracksdubs, Tay Zonday, and Powerglove.