Question: Have singers David Gilmour and Adam Duritz both been members of a band?

Context articles: High Hopes (Pink Floyd song)
David Gilmour (album)
David Gilmour in Concert
David Gilmour
David Bryson
Barn Jams
Maria (Counting Crows)
About Face (album)
Adam Duritz
David Gilmour Live 1984

"High Hopes" is the eleventh and final track from the 1994 Pink Floyd album "The Division Bell", composed by David Gilmour with lyrics by Gilmour and Polly Samson.
 Its lyrics speak of the things one may have gained and lost in life, written from Gilmour's autobiographic perspective.
 Gilmour has said that the song is more about his early days, and leaving his hometown behind, than about the seeds of division supposedly planted in Pink Floyd's early days.
 Douglas Adams, a friend of Gilmour, chose the album title from one verse in this song.
 Live versions are featured on "Pulse", "Remember That Night" and "Live in Gdańsk".
 On "", a somewhat shortened version of the song segues into Syd Barrett's "Bike".
 The segue is accomplished by cutting from the church bell at the end of "High Hopes" to a new bicycle bell sound effect before "Bike" begins.
 A 7-inch vinyl version of the single was released on a transparent record.
David Gilmour is the debut solo studio album by Pink Floyd guitarist and co-lead vocalist David Gilmour.
 The album was released in May and June 1978 in the United Kingdom and the United States, respectively.
 The album reached number 17 in the UK and number 29 on the Billboard US album charts; it was certified Gold in the US by the RIAA.
 The album was produced by Gilmour, and consists mostly of blues, guitar oriented rock songs except for the piano-dominated ballad "So Far Away".
David Gilmour in Concert is a DVD of Pink Floyd guitarist David Gilmour's solo concert at the Royal Festival Hall, London in June 2001, as part of the Robert Wyatt-curated Meltdown festival.
 It also features additional footage recorded during three concerts at the same venue in January 2002.
 The track selection includes several Pink Floyd compositions in addition to Gilmour's solo works.
 Guest appearances are made by Floyd colleague Richard Wright, as well as Robert Wyatt and Bob Geldof.
 It includes the first ever performance of "Smile" a track which would appear almost five years later on Gilmour's third solo album - "On an Island", and Gilmour even plays a few Syd Barrett compositions.
 Also included is "Je crois entendre encore " ("I still believe I hear"), an aria from Georges Bizet's opera "Les pêcheurs de perles " ("The Pearl Fishers"), with a libretto by Eugène Cormon and Michel Carré, and sung by Gilmour in the original French.
David Jon Gilmour, {'1': ", '2': ", '3': ", '4': "} (born 6 March 1946) is an English guitarist, singer and songwriter best known as a longtime member of the progressive rock band Pink Floyd.
 He joined group as guitarist and co-lead vocalist in 1968, effectively as a replacement for founder member Syd Barrett, who was dismissed from the band shortly afterwards.
David Bryson (born October 5, 1961) is a guitarist and vocalist for Counting Crows.
 He was a student of guitarist Joe Satriani.
 Prior to forming Counting Crows with Adam Duritz, he produced recordings by Duritz and his band, The Himalayans, from San Francisco, California.
 He formed Counting Crows with Duritz in San Francisco in 1991.
Barn Jams are a series of instrumental pieces written by Pink Floyd guitarist, David Gilmour and performed by him and the core members of his 2006 On an Island Tour band, Guy Pratt on bass, Richard Wright on keyboards and Steve DiStanislao on drums.
 The sessions were recorded and filmed in a barn at David's home in Sussex, England, in January 2007.
 It is unknown how many pieces exist, altrough Gilmour himself, in a bonus interview within the second DVD of his 2008 release "Live in Gdańsk", claims that he and guitarist Phil Manzanera (who co-produced the "On an Island" album) recorded and catalogued "close to 200" jams.
 Three tracks were released as part of the "Live in Gdańsk" 4-disc edition, deluxe edition and vinyl edition; one was released on "Remember That Night" (2007) and four more were released on the deluxe edition of Gilmour's 2015 "Rattle That Lock" album.
 The "Barn Jams" are the last released recordings made by Richard Wright before his death in 2008.
Maria is a recurring character in the songs written by Adam Duritz, the songwriter and lead singer of Counting Crows.
 Maria has appeared in the lyrics of five Counting Crows songs and in two other songs written by Duritz, and has fueled speculation and debate among fans.
 Duritz contends that she is fictional.
About Face is the second solo studio album by the English guitarist-singer-songwriter David Gilmour.
 It was originally released in March 1984, on the label Harvest in the UK, and Columbia in the US.
 Co-produced by Bob Ezrin and Gilmour, the album was recorded in 1983, in sessions that took place at Pathé Marconi Studio, in Boulogne-Billancourt, France.
 Two tracks, "All Lovers Are Deranged" and the more radio-friendly "Love on the Air", were co-written by Gilmour and his long-time friend Pete Townshend, the main songwriter for The Who (Gilmour composed the music and Townshend wrote the lyrics).
 The remainder of the tracks are credited solely to Gilmour.
 In May of the same year, fellow Pink Floyd member Roger Waters released his first official solo album "The Pros and Cons of Hitch Hiking".
Adam Fredric Duritz (born August 1, 1964) is an American musician, songwriter, record producer, and film producer.
 He is best known for his role as frontman and vocalist for the rock band Counting Crows, of which he is a founding member and principal composer of their catalog of songs.
Pink Floyd's David Gilmour or simply David Gilmour is a film by David Gilmour from his 1984 tour from the album "About Face" for Europe.
 The film is mainly a concert performance from The Hammersmith Odeon in London in April 1984.
 It also features promotional clips.
 Lastly, a documentary called "After The Floyd" which followed Gilmour on the 1984 solo tour and includes interviews with David on tour buses (the bus driver referred to David as ex-guitarist of Pink Floyd) and in hotel rooms.
 Also included is more live footage of concerts and soundchecks in Europe.
 It is now out of production.