"Pyramid" is the second single of Filipino pop and R&B singer Jake Zyrus and the lead single from his debut album,Charice.
 The song credited under his pre-gender transition name Charice, features vocals from British Virgin Islands singer Iyaz, was written by David Jassy, Niclas Molinder, Joacim Persson, Johan Alkenäs and R&B singer-songwriter Lyrica Anderson, and produced by Twin and Alke.
 A remix was said to be released on iTunes on February 16, 2010 which was later changed to February 23, the same day as the release of the album version.
 But the album version was delayed and was released on March 2.
 It is Zyrus's first number one single.
 Pyramid is a midtempo pop ballad with lyrics that metaphorically describes the strength of a relationship.
 "Pyramid" peaked at the "Billboard" Hot 100 chart at number 56, making Zyrus the second Filipino singer to enter the chart since Jaya's debut single "If You Leave Me Now" peaked on the "Billboard" Hot 100 at number 44 in 1990.
"Home" is a song written by Fred Lehner and Andy Spooner, and recorded by American country music singer Joe Diffie as his debut single.
 It was released in August 1990 as the lead-off single from his debut album "A Thousand Winding Roads".
 "Home" rose to the top of all three major country format charts that were in existence at the time — "Billboard", "Radio & Records" (now known as "Mediabase 24/7"), and the now-defunct "Gavin Report" — marking the first time in chart history that a country singer's debut single had done so.
 It also peaked at number 1 on the Canadian "RPM" Country Tracks chart.
"Old Enough to Know Better" is a debut single co-written and recorded by American country music singer Wade Hayes.
 It was released in November 1994 as the first single and title track from his debut album "Old Enough to Know Better", as well as his debut single.
 The song is also his only Number One hit, having reached its peak on the "Billboard" country charts in February of that year.
 It was written by Hayes and Chick Rains.
"Probablemente" (English: "Probably") is a song composed and performed by Mexican singer Christian Nodal featuring vocals from Spanish singer David Bisbal.
 The song was released on June 9, 2017, as the third single from his debut album, "Me Dejé Llevar".
Christian González Nodal (born January 11, 1999), is a Mexican singer-songwriter of mariachi music.
 Nodal is best known for his debut single, "Adiós Amor".
English electronic music group Clean Bandit have released one studio album, three extended plays, seven singles (including one as a featured artist) and eleven music videos.
 In December 2012, the group released their debut single "A+E", which peaked at number 100 on the UK Singles Chart.
 The song is the lead single from their debut album, "New Eyes", which was released in May 2014.
 The album's second single, "Mozart's House", charted at number seventeen on the UK Singles Chart, becoming Clean Bandit's first top twenty single on the chart. "
Dust Clears" was released as the third single from the album, reaching number forty-three on the UK chart.
 The album's fourth single, "Rather Be", features Jess Glynne and topped the UK Singles Chart, the group's first number one on the chart.
 Their 2016 single "Rockabye", which features rapper Sean Paul and singer Anne-Marie, became their second number-one hit in the UK, becoming the Christmas number one single for 2016 in its seventh consecutive week at number-one.
 The follow-up to "Rockabye", "Symphony", featured Zara Larsson and became their third UK number one single.
Adele is an English singer and songwriter.
 After signing a contract with record label XL Recordings in September 2006, Adele began to work on her debut studio album, "19", which was ultimately released in 2008.
 At this time, the singer contributed guest vocals on the song "My Yvonne" for Jack Peñate's debut studio album "Matinée" (2007).
 The first single released from "19" was "Chasing Pavements", which Adele wrote in collaboration with Eg White.
 They co-wrote two other songs for the album: "Melt My Heart to Stone" and "Tired".
 She also collaborated with Sacha Skarbek on the single "Cold Shoulder" and recorded a cover version of Bob Dylan's "Make You Feel My Love".
 However, most of the songs were written solely by Adele, including "Best for Last", "Crazy for You", "First Love", and "My Same", as well as her debut single, "Hometown Glory".
"Pon de Replay" is the debut single recorded by Barbadian singer Rihanna, from her debut studio album "Music of the Sun" (2005).
 It was written and produced by Vada Nobles, Alisha Brooks, Carl Sturken and Evan Rogers.
 Her debut single, the song was released on May 24, 2005 as the lead single from the album.
 Prior to signing a six album record deal with Def Jam Recordings, "Pon de Replay" was one of three songs which was recorded for her demo tape to be sent to record labels.
 It is a dance-pop, dancehall and R&B song that features elements of pop and reggae.
 The lyrics revolve around Rihanna asking a DJ to turn the volume of her favorite songs up louder.
 The name means "play it again" in Bajan Creole, one of Barbados' two official languages.
"Softly" is the debut single of J-pop singer, Leah Dizon.
 It was released on February 14, 2007, the same day she released her second photobook "Hello!
 Leah".
 The single fared moderately on the Oricon Charts, yet was quite a success for a debut single and has sold 48,554 copies to date.
"Pop Idol" was a British television talent show that ran for two series, in 2001 and 2003.
 The show was produced for ITV in a reality television format and aimed to unearth a previously undiscovered singer who could become an international success.
 Will Young was the winner of the first series and was awarded with a £1 million music recording contract.
 Young became the most successful contestant with a series of top-five hits, including his debut single "Anything Is Possible" / "Evergreen", which peaked at number one on the UK Singles Chart in 2002 and broke chart sales figure records.
 During the next seven years he recorded two further number-one singles ("Light My Fire" and "Leave Right Now"), while two of his four albums were number-one in the UK Albums Chart.
 In the second series, Michelle McManus emerged victorious.
 Her debut single "All This Time" charted at number one in January 2003.
 Her second single, "The Meaning of Love", charted at a peak of number 16 and an album of the same name reached number three in the UK Albums Chart.

Question: What was the debut single of the singer of "Probablemente"
Answer: "Adiós Amor"