Roots of Josh Groban

Judith Glory Hill is an American singer-songwriter from Los Angeles, California. She has provided backing vocals for such artists as Michael Jackson, Prince, and Josh Groban. In 2009, Hill was chosen as Jackson's duet partner for the song "I Just Can't Stop Loving You" during his This Is It rehearsals. After Jackson's death in 2009, she, along with the rest of the This Is It cast members, performed at Jackson's memorial service and attracted global attention when she sang the lead on the song "Heal the World". Hill's rise to fame is recounted in 20 Feet from Stardom, a documentary film that tells the untold story of the backup singers behind some of the "greatest musical legends of the 21st century". She is also a featured artist on the film's soundtrack. She won the Grammy Award for Best Music Film for her performance.

Tommee James Profitt is an American songwriter and record producer.

Monroe Vata Rigby, known mononymously as Monroe, is an American soprano singer. She represented France in the Eurovision Song Contest 2026 with the song "Regarde !", finishing in eleventh place. She also has performed with Josh Groban, on "Hymne à l'amour".

The Corrs are an Irish family band consisting of siblings Andrea, Sharon, Caroline and Jim. Their music combines pop rock with traditional Irish themes. They are from Dundalk in County Louth, Ireland.

Ladysmith Black Mambazo is a South African male choral group singing in the local vocal styles of isicathamiya and mbube. They became known internationally recognised after singing with American Paul Simon on his 1986 album Graceland. They have since won multiple awards, including five Grammy Awards the fifth of which they dedicated to the late former South African President Nelson Mandela.