Background: Martin Sandberg (born 26 February 1971), known professionally as Max Martin, is a Swedish songwriter, record producer and singer. He rose to prominence in the second half of the 1990s after making a string of major hits for artists such as the Backstreet Boys, Britney Spears and NSYNC. Some of his earlier hits include "...Baby One More Time" (1998)
Context: Sandberg was born in Stockholm and grew up in the suburb Stenhamra, Ekero Municipality.  As a child, Martin was a student of Sweden's public music-education program, and once said he had "public music education to thank for everything." Other alumni of the program include Andreas Carlsson, Rami Yacoub, and Anders Bagge.  As a teenager he sang in a variety of bands before joining a glam-style metal band called It's Alive in 1985 as their singer and frontman. It's Alive were formed by ex-LAZY members Per Aldeheim and Kim Bjorkgren on guitars, and John Rosth who had been a member of Lineout. Martin eventually dropped out of high school to pursue a career in music with his band under the nickname "Martin White." In 1988 they participated in the national rock championships and played as the in-house band at a disco in Cyprus. The band got a breakthrough in 1991, as Dave Constable of Megarock Records offered them to make a demo-record. The later debut album was originally pressed in 1,000 copies and later on given away as a free cover tape in the UK by the Metal Forces magazine.  The decision to focus on a music career paid off as they landed a record deal on producer Denniz PoP's label Cheiron Records, a BMG affiliate. After recording their second album Earthquake Visions, they released three singles in conjunction with the record and toured through Europe in 1994 supporting Kingdom Come. Earthquake Visions eventually sold a disappointing 30,000 copies, despite being released in as many as 30 countries. More importantly though, Martin also began collaborating on songs with PoP. Recognizing a talent for writing pop songs in the young rocker, PoP renamed his new protege Max Martin and eventually became Martin's mentor.
Question: When did he become a singer?
Answer: As a child,

Problem: Background: Erykah Badu was born Erica Abi Wright in Dallas, Texas. Her mother raised her, her brother Eevin, and her sister Nayrok alone after separating from their father, William Wright Jr. To provide for her family, the children's maternal and paternal grandmothers often helped look after them. Badu had her first taste of show business at the age of four, singing and dancing at the Dallas Theater Center and The Black Academy of Arts and Letters (TBAAL) under the guidance of her godmother, Gwen Hargrove, and uncle TBAAL founder Curtis King.
Context: In May 2013, Badu announced she was writing her next project, but not placing a time constraint on it. In July 2014, Badu revealed she was still working on the album and had been recording in April in Africa where she was "laying down drum tracks". Badu also said that prior to her trip to Africa she would have meetings with her record label to set a deadline for the album. Later that year Badu expanded on the album, stating she was working with producer Flying Lotus, who she met via MySpace years ago; they later met in L.A. at guitarist Steve Wilson's house. In 2015 Badu appeared on "Rememory", a song from Donnie Trumpet & The Social Experiment's album Surf. In July 2015, Badu released a free mixtape of her favorite recordings, describing the set as "carefully and lovingly selected high frequency tones for the soul." The mixtape features mostly vintage funk, soul and jazz songs. On March 26, 2015, Erykah Badu performed at The Bomb Factory in her hometown, Dallas, Texas, for the Deep Ellum venue's grand opening. The sold-out show also featured fellow Dallas native, singer-songwriter Sarah Jaffe.  In early October, Badu released a remix of Drake's single "Hotline Bling", and later released a mixtape, But You Caint Use My Phone, on November 27, 2015, making it available for digital download and streaming exclusively through Apple Music. After one week of exclusive release on iTunes, But You Caint Use My Phone was released to other digital retailers and streaming services on December 4, 2015. The mixtape was released without the knowledge of her label Universal, due to Badu sending the record straight to iTunes. It also marked Badu's first release under her own record label, Control Freaq. But You Caint Use My Phone received generally positive reviews from critics and debuted at number 14 on the Billboard 200, selling 35,000 equivalent album units in its first week. Badu also hosted the 2015, 2016 and the 2017 Soul Train Music Awards.  Badu held her annual "Still Boomin'" sold-out birthday bash concert at The Bomb Factory on February 26, 2016, marking her second performance at the venue since its grand opening 11 months earlier. The event was hosted by Badu's close friend Dave Chappelle and featured a surprise appearance by Outkast frontman Andre 3000. Badu enlisted Dallas local hip hop acts -topic, Zach Witness, and Cameron McCloud as her supporting acts.
Question: How did it do?
Answer:
Freaq. But You Caint Use My Phone received generally positive reviews from critics and debuted at number 14 on the Billboard 200,