Question: What genre did musicians Perry Farrell and Roger Hodgson have in common?

Context paragraphs:
Satellite Party: Satellite Party was an alternative rock band formed by Jane's Addiction vocalist Perry Farrell following the break-up of Jane's Addiction in 2004.  Other members included Carl Restivo (bass) and Farrell's wife, Etty Lau Farrell (backing singer and dancer).  The band was initially formed as a collaboration between Farrell and Extreme member Nuno Bettencourt, however Bettencourt departed from the project in July 2007.

Perry Farrell: Perry Farrell (born Peretz Bernstein; March 29, 1959) is an American singer-songwriter and musician, best known as the frontman for the alternative rock band Jane's Addiction.  Farrell created the touring festival Lollapalooza as a farewell tour for Jane's Addiction in 1991; it has since evolved into an annual destination festival.  Farrell continues to produce Lollapalooza with partners William Morris Agency and C3.  Farrell has also led the alternative rock groups Porno for Pyros and Satellite Party.  He is the only person who has performed at all twelve Coachella Valley Music and Arts Festivals to date, having appeared under five different names (Perry Farrell, Jane's Addiction, DJ Peretz, Satellite Party, and with Hybrid).

Roger Hodgson: Charles Roger Pomfret Hodgson (born 21 March 1950) is an English musician, singer and songwriter, best known as the former co-frontman and founder member of progressive rock band Supertramp.  Hodgson composed and sang the majority of the band's hits, including "Dreamer", "Give a Little Bit", "Breakfast in America", "Take the Long Way Home", "The Logical Song" and "It's Raining Again".

Open the Door (Roger Hodgson album): Open the Door is the fourth album by Roger Hodgson, released by Epic Records and his third and most recent studio one (and his first studio release since 1987).  It was recorded mostly in France and features mostly French musicians as his backup band.  This is Hodgson's only solo album to be partially recorded outside The United States.

Enit Festival: The Enit Festival was a one-night electronic music festival created by Perry Farrell in 1995.  Originally created as an after party for Lollapalooza, Farrell tried to take the space based festival on the road after minimal success.  The name is derived from Ludwig Pallman's book "Cancer Plant Remission".  According to early ads for the festival, it was described as "an inter-planetary festival celebrating cosmic peace and sexuality."

Gift (1993 film): Gift is a 1993 experimental docudrama made by Perry Farrell and Perry's then-girlfriend, Casey Niccoli.  The film prominently features Farrell's band Jane's Addiction.  The majority of filming took place during the recording sessions of Ritual de lo Habitual, in 1990.

Song Yet to Be Sung: Song Yet to Be Sung is an album by Jane's Addiction vocalist Perry Farrell, released on July 16, 2001, on Virgin Records.  The album features collaborations from Farrell's former bandmates Dave Navarro, Stephen Perkins and Martyn LeNoble.  It was originally titled "The Diamond Jubilee".  The title track,"Song Yet to Be Sung" was the official song for trailers of the series premiere of Smallville.

Hai Hai: Hai Hai is the second solo album by ex-Supertramp singer/guitarist/keyboardist Roger Hodgson, released in 1987.  Co-produced by future No Doubt and Black Crowes producer Jack Joseph Puig, and recorded at Hodgson's 48-track home studio in Nevada City, California, the album is a merger of Supertramp-styled progressive pop-rock and extensive use of Los Angeles session musicians and late-1980s synthesizer technology.

Frank Farrell (musician): Francis Anthony "Frank" Farrell (31 March 1947 – 19 July 1997) was a British rock bassist, vocalist and songwriter born in Birmingham, England.  He attended St. Philip's Grammar School in Hagley Road, Edgbaston from 1959 to 1963.  Over a professional career that spanned thirty years he is best known as the bassist of British rock band Supertramp and for his musical association with Leo Sayer.  Farrell co-wrote the song "Rosie Had Everything Planned" with Roger Hodgson while with Supertramp and a number of songs with Sayer including the worldwide chart hit "Moonlighting".

Psi Com: Psi Com was an American post-punk band of the early 1980s, consisting of Perry Farrell (vocals), Aaron Sherer (drums and percussion), Vince Duran (guitar) and Kelly Wheeler (bass).  Prominent in the underground Los Angeles music scene, the group were noted for being the first band of Farrell, who went on to achieve greater fame in the bands Jane's Addiction, Porno for Pyros and the Satellite Party.

Supporting paragraphs: Perry Farrell Roger Hodgson
Answer: rock