useless trivia: What Word Means: To Gel Again?

Questions

He began his career as a lead vocalist with the group 'Them' during the early British invasion?

He played the drums on the "Disraeli Gears" album?

He published "The Four Seasons," a set of twelve concertos, in 1725?

He wrote "The Nutcracker" and the "1812 Overture"?

Her '92 _Arkansas_Traveler_ album has "Come a Long Way" and "Prodigal Daughter"?