Question: Rick Witter and Harry Styles are both what?

Context paragraphs:
A Maximum High: A Maximum High is the second studio album by the British rock band Shed Seven, released in April 1996 via Polydor Records.  The album was written by all four band members at the time of release; Rick Witter, Paul Banks, Tom Gladwin and Alan Leach.

Sweet Creature: "Sweet Creature" is a song recorded by English singer and songwriter Harry Styles for his self-titled debut studio album (2017).  The song was written by Styles and Kid Harpoon, and its production was handled by the latter, Jeff Bhasker, Alex Salibian and Tyler Johnson.  It was released as a promotional single ahead of the album release.

Harry Styles (album): Harry Styles is the debut studio album by English singer and songwriter Harry Styles.  The album was released on 12 May 2017, through Columbia Records and Styles' own label, Erskine Records.  For the album, Styles worked with producers Jeff Bhasker, Alex Salibian, Tyler Johnson and Kid Harpoon.  The record was defined by music publications as a collection of soft rock, rock, Britpop and pop.  It received generally positive reviews from music critics, and commercially, it debuted atop the charts in several countries, including Australia, Canada, the UK and the US.  It was preceded by the release of its lead single, "Sign of the Times", while "Two Ghosts" served as the second single.  To promote the album, the singer is embarking on first headlining concert tour, .

Rick Witter: Richard James "Rick" Witter (born 23 November 1972 in Moss Side, Cheshire) is a singer, songwriter and frontman of the York-based Britpop band Shed Seven.

Let It Ride (Shed Seven album): Let It Ride is the third studio album by the British rock band Shed Seven, released in June 1998 via Polydor Records, and was the band's first LP to be written solely by Rick Witter (lyrics) and Paul Banks (music).

Harry Styles: Live on Tour: Harry Styles - Live on Tour is the debut concert tour by British singer Harry Styles in support of his eponymous album (2017).  The tour began in September 2017, in San Francisco and will play over 80 concerts through to July 2018 in the Americas, Europe, Asia and Australasia.

Rick Witter &amp; The Dukes: Rick Witter & the Dukes are a British alternative rock band from York, England.

Shed Seven: Shed Seven are an English alternative rock band, formed in York in 1990.  One of the groups which contributed to the Britpop music scene of the 1990s, they never received the degree of mainstream success achieved by the likes of Oasis and Blur.  They originally comprised singer Rick Witter, guitarist/keyboardist Joe Johnson, bassist Tom Gladwin and drummer Alan Leach.  Johnson was later replaced by Paul Banks.

Alex Salibian: Alex Salibian is a music producer signed to Grammy-winning producer Jeff Bhasker's production company.  His most recent work includes producer and co-writer of Harry Styles solo debut album Harry Styles (album) as well as producer and co-writer of Young the Giant’s third album Home of the Strange.  Alex is also the musical director of Harry Styles’s band, starting with his performance on Saturday Night Live on April 15th, 2017

Harry Styles: Harry Edward Styles (born 1 February 1994) is an English singer, songwriter, and actor.  He made his debut as a singer with his band White Eskimo, who performed locally in Holmes Chapel, Cheshire.  Styles rose to stardom as a member of the boy band One Direction, formed in 2010 through the British music competition series "The X Factor".  One Direction has released five albums, performed four worldwide tours, and won several awards.

Supporting paragraphs: Rick Witter Harry Styles
Answer: singer, songwriter