Simplify the following text for a Grade 8 native English-speaking person.
Original: The song became the fourth music video released by Yankovic , and featured a number of cameo appearances including Fleming , Greg Kihn , Yankovic 's mentor Dr. Demento , original Jeopardy !
Simplified: It also featured `` Jeopardy '' artist Kihn and Yankovic 's mentor Dr. Demento .