Question: Are Gary Numan and Jeff Scott Soto both singers?

Context paragraphs:
Techno Army Featuring Gary Numan: Techno Army featuring Gary Numan is a remix album by English musician Gary Numan.  It was released in April 1996 and consists of remixes of various Numan tracks from 1979 to 1994 with newly recorded vocals by Numan.  The artwork and booklet do not confirm who remixed the tracks, though it is likely to be Nick Smith and Miles Seabrook (with the definite exception of "Cars" (Talla 2XLC Remix).

Jeff Scott Soto: Jeff Scott Soto (born November 4, 1965) is an American rock singer of Puerto Rican descent.  He is best known for being the vocalist on Yngwie Malmsteen's first two albums, and the lead vocalist for Journey on their 2006–2007 tours.  He also had a long tenure as the frontman of hard rock band Talisman.  Currently he works as solo artist, with his self-named band SOTO and as the vocalist of supergroups W.E.T., Sons of Apollo and Trans Siberian Orchestra.

Kipper (musician): Kipper (born Mark Eldridge) is a Grammy-winning guitarist, keyboardist and music producer, known mostly from his cooperation with Gary Numan and Sting.  Kipper had his own band, One Nation.  After releasing two albums with One Nation he joined the Gary Numan band playing guitar.  After realizing his own music was going in a similar direction as Kipper's previous work, Numan asked him to co-produce his 1992 LP "Machine and Soul".  The album was a mix of funk, rock and dance pop featuring guitar playing from Kipper.  Kipper also contributed to Numan's 1994 album "Sacrifice" although to a much lesser extent.  Years later, Kipper helped produce and played keyboards on two of Sting's studio albums "Brand New Day" and "Sacred Love".  Both albums have been critically acclaimed and feature a modern fusion of jazz, rock, and electronic and sounds.

Essential Ballads: Essential Ballads is a compilation album by Jeff Scott Soto.  It consists ballads from Soto's solo albums.

Axel Rudi Pell: Axel Rudi Pell (born 27 June 1960) is a German heavy metal guitar player and his eponymous band.  He started off with the band Steeler (1984–88) before leaving to start his solo career in 1989.  During this time, he has played with such drummers as Jörg Michael and Mike Terrana, and singers Johnny Gioeli, Jeff Scott Soto, and Rob Rock.

Believe in Me (EP): Believe in Me is a 2006 EP by Jeff Scott Soto and the only EP released by Frontiers Records.  Believe in Me name was derived from a song on Soto's "Lost in the Translation" album.  Four other cuts were taken from the "Essential Ballads" CD and were issued in the EP as a sneak preview.  "Believe in Me" was considered to be a single.  but Jeff Scott Soto instead released Believe in Me as an EP.

Gary Numan: Gary Anthony James Webb (born 8 March 1958), known professionally as Gary Numan, is an English singer, songwriter, composer, musician and record producer.  Born in Hammersmith, West London, he first entered the music industry as lead singer of the new wave band Tubeway Army.  After releasing two studio albums with the band, Numan released his debut solo album "The Pleasure Principle" in 1979.

Jorge Salán: Jorge Salán (born April 4, 1982) is a Spanish rock lead guitarist, singer, producer and songwriter.  He is most well known for being the lead guitar for the metal rock solo singer Jeff Scott Soto (leading voice of Journey, Yngwie Malmsteen) and the Jeff Scott Soto Band (now SOTO) from 2009 till today, the lead guitar on Robin Beck's European Tour 2013, and for having collaborated with a long list of legendary rock musicians such as Fiona Flanagan or bass guitar player Bob Daisley.

Live at the Gods Festival 2002: Live at the Gods is a live album by Hardline which was released on DVD and CD in 2003.  It was recorded at the Gods Festival in Bradford, England on 2 June 2002, where Hardline was the headliner for this festival.  The concert was an all day festival which featured eight other bands, such as Jeff Scott Soto, whom marked his first live performance as a solo artist, and Harem Scarem.  Hardline was the last band to play at 2 a.m. and during the first couple of songs on the show, the band was suffering from technical and sound problems on stage.  The microphones and equipment were worn out after being on all day.  This also affected the back up singer's microphones the most, causing them to not hear their own voices over the loud music.  While performing the ballad "Face the Night", an angry Johnny Gioeli storms off stage to talk to the Tech Staff to fix the microphones, but keeps his cool and comes back on stage to perform the rest of the show.  Three back up singers were used (two female, one male) at the concert.  The female backup singers, Gudi Laos and Katja Kutz also toured with Johnny's other band – Axel Rudi Pell – on their 2002 Shadow Zone tour.  The line up for the band members in the show is the same as Hardline's second album, with the exception of bass player Christopher Maloney's replacement by producer Bob Burch.

The Best of Gary Numan 1978–1983: The Best of Gary Numan 1978–1983 is a double disc compilation album of Gary Numan's singles and selected album tracks released on the Beggars Banquet Records label.  The album peaked at #70 on the UK Album Chart, and was promoted by a remixed re-release of Numan's 1979 hit "Cars" ('93 Sprint).  Both the original version and the remixed version appear on the album.

Supporting paragraphs: Gary Numan Jeff Scott Soto
Answer: yes