John Denver was one of the highest-selling and most popular singers during the 1970s. He was known for folk, pop and country music. Some of his greatest songs are Take Me Home Country Roads, Leaving on a Jet Plane, Rocky Mountain High, Sunshine on My Shoulders and Annie's Song. He died when a plane he was piloting crashed in California.
Demi Lovato rose to fame with the television film Camp Rock, but became highly successful as singer when she released her pop rock debut album, Don't Forget in 2008, which was followed by many more albums seeing millions in sale. Her health issues like bipolar disorder, anorexia nervosa and drug and alcohol addictions have received significant media attention.