Question: Are Jeff Scott Soto and Petri Lindroos both members of Ensiferum?

Context paragraphs:
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.

Human Clay (band): Human Clay were a Swedish / American international side project / supergroup / band consisting primarily of Talisman members Marcel Jacob and Jeff Scott Soto.

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.

Petri Lindroos: Petri Lindroos (born 10 January 1980 in Espoo, Finland) is a melodic death/folk metal guitarist and vocalist.  He is currently the lead vocalist in Ensiferum and, prior to this, was a founder and lead vocalist for Norther.

Markus Toivonen: Markus Toivonen (born 1979 in Helsinki) is the founding member of the Finnish folk/death metal band Ensiferum.  Markus founded the band in 1995 and is the sole original member to have lasted the distance to Ensiferum's present incarnation.  His role in the band is guitarist and primary songwriter.  He has always contributed backing vocals and since the departure of Jari Mäenpää in 2004 has taken up a greater role behind the microphone, sharing the clean vocal parts with new bass player Sami Hinkka, with Mäenpää's replacement Petri Lindroos handling the harsh vocals.

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

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.

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.

Aleksi Sihvonen: Aleksi Sihvonen is the current vocalist for the Finnish band Medicated.  He replaced Norther's vocalist Petri Lindroos in 2009, until the group disbanded in 2012.  He was also the former guitarist and vocalist of Imperanon.

Dragonheads (EP): Dragonheads is an EP by Finnish folk metal band Ensiferum.  It was released on February 15, 2006 by Spinefarm Records.  It is the first Ensiferum release featuring the then recently hired members Petri Lindroos, Sami Hinkka and Janne Parviainen.  Mastered at Finnvox Studios.  "Warrior's Quest" and "White Storm" are the re-recordings of songs from the band's second demo.  "Finnish Medley" is a medley of the Finnish traditional pieces "Karjalan kunnailla", "Myrskyluodon Maija", and "Metsämiehen laulu".

Supporting paragraphs: Jeff Scott Soto Petri Lindroos
Answer: no