Josh Groban
Joshua Winslow Groban (born February 27, 1981) is an American singer, songwriter, actor, and record producer, who is known for his unusually dusky tenor voice.
His first four solo albums have been certified multi-platinum, and he was charted in 2007 as the number-one best selling artist in the United States, with over 22.3 million records.
, he had sold over 25 million records worldwide.
Groban originally studied acting, but moved to singing as his voice developed.
Groban attended the Los Angeles County High School for the Arts, a free public school on the campus of California State University, Los Angeles, where students receive a conservatory-style education.
David Foster called Groban to stand in for an ailing Andrea Bocelli to rehearse a duet, "The Prayer", with Celine Dion at the rehearsal for the 1998 Grammy Awards.
Rosie O'Donnell immediately invited him to appear on her talk show.
Foster asked him to sing at the California Governor's Gray Davis' 1999 inauguration.
He was cast on "Ally McBeal" by the show's creator, David E. Kelley, performing "You're Still You" for the 2001 season four finale.
In 2017, he made his Broadway debut as Pierre Bezukhov in "Natasha, Pierre & The Great Comet of 1812", to critical acclaim and a Tony Award for Best Actor in a Musical nomination.
His performance at the 72nd Tony Awards earned him two Primetime Emmy nominations, one for Outstanding Live Variety Special and one for Original Music and Lyrics for the song "
This One's for You".
Groban co-starred as Tony Caruso Jr. in the Netflix original series,
"The Good Cop".
Caspar Babypants
Caspar Babypants is the stage name of children's music artist Chris Ballew, who is also widely known as the singer of The Presidents of the United States of America.
Rasmussen (singer)
Jonas Flodager Rasmussen( born 21 January 1985), known professionally as simply Rasmussen, is a Danish singer and actor.
He represented Denmark in the Eurovision Song Contest 2018 in Lisbon, Portugal, with the song" Higher Ground".
Bernie Bonvoisin
Bernard Bonvoisin, known as Bernie Bonvoisin( born 9 July 1956 in Nanterre, Hauts- de- Seine), is a French hard rock singer and film director.
He is best known for having been the singer of Trust.
He was one of the best friends of Bon Scott the singer of AC/ DC and together they recorded the song" Ride On" which was one of the last songs by Bon Scott.
Kristian Leontiou
Kristian Leontiou (born February 1982) is a British singer of Greek Cypriot descent, and is the singer for the indie rock band One eskimO.
Panda (Astro song)
" Panda" is a song of the Chilean band Astro and is the fifth song of the homonymous album of the year 2011.
The song was composed and produced by the singer of the band Andrés Nusser and released like third single of the album on February 1, 2013.
Higher Window
"Higher Window" is singer-songwriter Josh Groban's third single for his fifth studio album "Illuminations."
Dáithí Sproule
Dáithí Sproule( born 23 May 1950) is a guitarist and singer of traditional Irish music.
His niece is the singer Claire Sproule.
Billy Milano
Billy Milano is a Bronx- born heavy metal musician now based in Austin, Texas.
He is the singer and- occasionally- guitarist and bassist of crossover thrash band M.O.D., and he was also the singer of its predecessor, Stormtroopers of Death.
He was also the singer of United Forces, which also featured his Stormtroopers of Death bandmate Dan Lilker.
O Valencia!
" O Valencia!" is the fifth single by the indie rock band
The Decemberists, and the first released from their fourth studio album," The Crane Wife".
The music was written by The Decemberists and the lyrics by Colin Meloy.
It tells a story of two star- crossed lovers.
The singer falls in love with a person who belongs to an opposing gang.
At the end of the song, the singer's lover jumps in to defend the singer, who is confronting his lover's brother( the singer's" sworn enemy") and is killed by the bullet intended for the singer.

Question: What nationality is the performer of song Higher Window?
Answer: American