Question: Are Toby Rand and Donnie Iris both musicians?

Context paragraphs:
Ah! Leluiah!: Ah!  Leluiah!  is the eleventh studio album and the first Christmas album by American rock singer Donnie Iris, released on November 18, 2010.  The project was first announced by keyboardist/songwriter/producer/legalist Mark Avsec in February 2010 in an interview with "Cleveland Scene".  (The album title is a pun on Iris' big hit song, Ah!  Leah! .)

Ah! Leah!: "Ah!  Leah!"  is a song by American rock musician Donnie Iris from his 1980 album "Back on the Streets".  The song was released as a single in late 1980 and reached number 29 on the US "Billboard" Hot 100, 22 on the "Cash Box" Top 100, and 19 on the US "Billboard" Top Tracks chart.  The song is widely considered to be Iris' signature song and was most popular in Canada, where it became a Top 10 hit.

Poletown (album): Poletown is the eighth studio album by American rock singer Donnie Iris, released in 1997.  It was Iris' third post-major label release, and was released independently on Seathru Records.

The Rapper: "The Rapper" is a song by The Jaggerz, written by band member Dominic Ierace, better known as Donnie Iris.  Released as a single, it reached No. 2 on the "Billboard" Pop Singles chart and was certified Gold by the RIAA in 1970 (see 1970 in music) for selling over a million copies.  (Iris later launched a solo career; his biggest such hit was Ah!  Leah! .)

Toby Rand: Toby William Lloyd Rand (born 21 December 1977) is an Australian singer best known for being lead singer of rock band RAND, previous band Juke Kartel, and his appearance on "".

Donnie Iris: Donnie Iris (born Dominic Ierace on February 28, 1943) is an American rock musician known for his work with the Jaggerz and Wild Cherry during the 1970s, and for his solo career beginning in the 1980s with his band, the Cruisers.  He wrote the # 2 "Billboard" hit, "The Rapper", with the Jaggerz in 1970 and was a member of Wild Cherry after the group had a #1 hit with "Play That Funky Music."  He also achieved fame as a solo artist in the early 1980s with the # 29 hit "Ah!  Leah! " and the # 37 hit "Love Is Like a Rock."

Jimmie Ross: Jimmie Ross is an American rock guitarist and vocalist who is best known for being a member of Pittsburgh band the Jaggerz, known for their 1970 hit "The Rapper".  During the band's initial existence of 1965-1976, the bassist shared the duties of lead vocalist with guitarist Donnie Iris.  By the time the Jaggerz regrouped in 1989, Iris was well into his solo career, and Ross became the sole lead vocalist and remained bassist.  He continues to hold both positions today.

Only the Wild Survive: Only the Wild Survive is an album by Wild Cherry, released in 1979.  Their fourth studio album, this would be their last before breaking up the same year.  It was also the first and only Wild Cherry album to feature Donnie Iris (formerly of the Jaggerz) as a performer.  After Wild Cherry's breakup, Iris and bandmate Mark Avsec would launch Donnie Iris and the Cruisers.

Magnificent Obsession (album): Magnificent Obsession is the second and final studio album from 1980s pop-rock act Cellarful of Noise, a solo project of Mark Avsec of Donnie Iris fame.  The album was released in March 1988, with some of the tracks featuring Donnie Iris on vocals.

Juke Kartel: London Cries (formerly Juke Kartel) are a rock band from Melbourne, Australia.  The band formed in Melbourne, Australia in the early 2000s, and since October 2007 their line-up has consisted of vocalist Toby Rand, guitarist and piano Todd Burman, guitarist and back up vocalist Dale Winters, drummer Jason Pinfold with bassist and back up vocalist Tommy Kende.  Lead vocalist Toby Rand, brought fame to the band after competing in American singing competition , a T.V show broadcast worldwide on CBS television - he finished third.  In the early Fall of 2010, Juke Kartel will release their latest album "Levolution" on Carved Records.

Supporting paragraphs: Toby Rand Donnie Iris
Answer: yes