Performed by Whitney Houston
"The Greatest Love of All" is a song originally recorded in 1977 by singer and guitarist George Benson. Eight years later, Whitney Houston's 1985 cover (with the slightly amended title "Greatest Love of All") eventually topped the charts, peaking at #1.
Performed by Pharrell Williams
"Happy" is a song written, produced and performed by American singer and producer Pharrell Williams, from the "Despicable Me 2" soundtrack album. It also served as the lead single from Williams' second studio album, "Girl" (2014).
Performed by Billy Porter featuring Cyndi Lauper
"Happy Days Are Here Again/Get Happy" is a duet performed by Billy Porter featuring Cyndi Lauper. Porter won the 2013 Tony Award for Best Actor in a Musical for his role as Lola in "Kinky Boots" at the 67th Tony Awards.
Performed by John & Yoko/Plastic Ono Band with The Harlem Community Choir
"Happy Xmas (War Is Over)" is a Christmas song with lyrics by John Lennon and Yoko Ono, released in 1971 as a single by John & Yoko/Plastic Ono Band with The Harlem Community Choir. The song reached number 4 in the United Kingdom.
Performed by Sister Sledge
"He's the Greatest Dancer" is a song written by Bernard Edwards and Nile Rodgers, and recorded by Sister Sledge for their successful album "We Are Family" (1979). The song was sampled by Will Smith in his 1997 number one hit single "Gettin' Jiggy wit It".
Performed by Mariah Carey
"Me. I Am Mariah... The Elusive Chanteuse" is the fourteenth studio album by American singer and songwriter Mariah Carey. It was released on May 23, 2014, through Def Jam Recordings. It contains the song "Heavenly (No Ways Tired/Can't Give Up Now)".