Question: Are Steve Perry and Leslie West both singers?

Context:
For the Love of Strange Medicine
For the Love of Strange Medicine is the second studio album by Steve Perry, released on July 19, 1994 through Columbia Records.
 After a lengthy 8-year hiatus following the breakup of Journey, Perry returned to the spotlight with this album.
 The first single "You Better Wait" received major radio airplay and reached the top 10 on the Billboard Mainstream Rock chart in the U.S.
 The album was followed by a tour in 1994-1995.
 "For the Love of Strange Medicine" was certified as gold by the Recording Industry Association of America (RIAA) for shipments of 500,000 units in the United States, as of September 1994.
Tyler Morris
Tyler Drew Morris is an American professional guitar player who was born in Boston, Massachusetts.
 Morris has performed with Yngwie Malmsteen, Steve Vai, Gary Hoey, Joe Stump, Sammy Hagar, Leslie West, Rudy Sarzo, Vince Neil, Joe Vitale, Johnny Winter, James Montgomery, David Hull, Phil Collen, Fred Coury, Robert Marcello, Kip Winger, AJ Pappas, Jimi Bell, Gary King, George Lynch, Bruce Kulick, Jason Becker, Vernon Reid, Jeff "Skunk" Baxter, Ronnie Montrose and others.
 Morris does demonstrations for Fishman Electronics, Dean Guitars, and REVV Amplification among other companies at the annual summer and winter NAMM shows.
 At the age of 15, Morris wrote his first studio album, "And So It Begins".
 This album was later featured in "Guitar Player Magazine", "Vintage Guitar Magazine", "Heavy Riff Magazine", Korea Guitar, and other worldwide media outlets.
 He has performed at venues including Mechanic's Hall, The Larcom Theater, Tupelo Music Hall, The House of Blues in Los Angeles, B. B. King's Blues Club in New York City and in West Palm Beach, The Miami Beach Bandshell, The Regent Theater, The Cutting Room, The Hard Rock Cafe and many other venues all across the United States.
Leslie West
Leslie West (born Leslie Weinstein; October 22, 1945) is an American rock guitarist, vocalist, and songwriter.
 He is best known as a founding member of the hard rock band Mountain.
Leslie West Live!
Leslie West Live!
 is a live album by Leslie West, released in 1993.
S. D. Perry
Stephani Danelle Perry (credited as S. D. Perry in her works) is an American novelist.
 She is the daughter of writer Steve Perry.
Step Back (album)
Step Back is an album by blues guitarist and singer Johnny Winter.
 It features performances by a number of guest musicians, including Eric Clapton, Dr. John, Billy Gibbons from ZZ Top, Joe Perry from Aerosmith, Leslie West from Mountain, and Brian Setzer from the Stray Cats.
 It was released by Megaforce Records on September 2, 2014.
Steve Perry (Oregon musician)
Stephen Henry Perry (born October 8, 1963) is an American musician, best known as lead singer, songwriter and rhythm guitarist for the Oregon ska-swing band the Cherry Poppin' Daddies.
Climbing!
Climbing!
, also known as Mountain Climbing!
, is the official debut studio album by American blues rock band Mountain.
 Released on March 7, 1970, the album featured the 'classic' Mountain lineup of Leslie West (guitar, vocals), Felix Pappalardi (bass, vocals, piano), Corky Laing (drums, percussion) and Steve Knight (keyboards) and followed the West solo album "Mountain" featuring Pappalardi and drummer Norman Smart, released in 1969 and often credited to the band.
 Produced by Pappalardi, the album reached number 17 on the American "Billboard" 200 albums chart and featured the band's best-known song, "Mississippi Queen".
 An early rendition of "For Yasgur's Farm" was actually performed at the Woodstock Festival in August 1969 as Who Am I But You And The Sun.
 It was subsequently recorded and retitled for the album.
Arrival (Journey album)
Arrival is the eleventh studio album by the American rock band Journey, released in the United States in 2001.
 A version with one substituted song was released in Japan in 2000.
 The album was the band's first full-length studio album with new lead vocalist Steve Augeri, who replaced popular frontman Steve Perry, and with Deen Castronovo, who replaced Steve Smith as the band's drummer.
The Leslie West Band
The Leslie West Band is the third album released by American rock guitarist Leslie West.
 The album, recorded at Electric Lady Studios in New York City, was released on Bud Prager's Phantom Records in 1976 and features Mick Jones of Foreigner on guitar.

Answer: yes