Question: What is the lead vocalist of the British pop rock band that first gained fame in 2012 and is associated with Ross Golan?

Context paragraphs:
Airi Suzuki: Airi Suzuki (鈴木 愛理 , Suzuki Airi , born April 12, 1994, in Gifu, Japan) is a Japanese pop singer, actress, model, and radio personality.  She first gained recognition when she joined Hello!  Project Kids and later became the lead vocalist of the girl group Cute from 2005 to 2017.  Throughout her singing career, Suzuki also became a vocalist for the pop rock girl group Buono! .  From June 2015 onwards, she became an exclusive model for the fashion magazine "Ray".

Dangerous Woman (song): "Dangerous Woman" is a song recorded by American singer Ariana Grande, serving as the lead single for her third studio album of the same name (2016).  It was co-written and produced by Johan Carlsson and Ross Golan, with additional writing from Max Martin.  The recording was released as the first single from the album on March 11, 2016, the same date of the album's pre-order on iTunes Store.  "Dangerous Woman" is a mid-tempo pop and R&B song, incorporating an arena rock chorus and a guitar solo during its bridge.

Made (Hawk Nelson album): Made is the sixth studio album and eighth overall album for Christian rock band Hawk Nelson, which was produced by Seth Mosley and Jonathan Steingard that was released on April 2, 2013 on the Fair Trade Services record label.  This was the first album the band has made while on that respective label, and the first album that the band has made since the departure of lead vocalist Jason Dunn.  The lead vocalist for the band now is guitarist Steingard.  The album marks the bands shift from the pop punk genre to a softer, contemporary alternative pop rock and has been met with commercial and critical success.

Russ Taff: Russell Taff (born November 11, 1953) is an American gospel singer and songwriter.  He has sung a variety of musical styles throughout his career including: pop rock, traditional southern gospel, contemporary country music, and rhythm and blues.  He first gained recognition as lead vocalist for The Imperials (1977–81).  One of his best-known performances is the song "Praise the Lord".  He has also been a member of the Gaither Vocal Band, and occasionally tours with Bill Gaither in the Gaither Homecoming concerts.  As a solo artist and songwriter, Taff is known for the 1980s anthem "We Will Stand".

The Vamps (British band): The Vamps are a British pop rock band consisting of Brad Simpson (lead vocals and guitar), James McVey (lead guitar and vocals), Connor Ball (bass guitar and vocals) and Tristan Evans (drums and vocals).  They first gained fame in late 2012 with cover songs uploaded to YouTube, leading to comparisons with One Direction and being labelled as a boy band.  They were signed to Mercury Records in November 2012.  They supported McFly on their in early 2013, and also performed at festivals around the UK as support acts for artists such as Demi Lovato, The Wanted, JLS, Little Mix and Lawson.

Absent Elk: Absent Elk are a British pop rock band who formed in 2008.  They have released two singles to date, and released their first album in October 2009.  Their cover version of Girls Aloud's "The Loving Kind" posted on YouTube became a small phenomenon, and led to them being invited to support Girls Aloud on the first leg of their Out of Control Tour in spring 2009.  The band's name comes from their Norwegian influence, as the band's lead vocalist, Kjetil Mørland, is from Norway, whom he represented at the Eurovision Song Contest 2015 alongside Debrah Scarlett.

Ely Buendia: Eleandre "Ely" Basiño Buendia (born November 2, 1970) is a Filipino musician, writer and director who gained fame as guitarist, songwriter and lead vocalist of the popular Filipino rock band Eraserheads.  His compositions gained success and critical acclaim, topping various music charts, and are now considered classics.  Widely regarded as one of the most respected music icons in the country, he currently performs as guitarist and lead vocalist for Pupil, The Oktaves and Apartel.

Ross Golan: Ross Golan (born April 8, 1980) is a multi-platinum songwriter from the north suburbs of Chicago.  He graduated from Deerfield High School (Illinois) of Deerfield, Illinois in 1998.  He studied music at the University of Southern California and has since released songs with artists including Maroon 5, Justin Bieber, Nicki Minaj, Lady Antebellum, Michael Bublé, Selena Gomez, Keith Urban, Ariana Grande, Flo Rida, One Direction, Idina Menzel, Nelly, Demi Lovato, Jason Derulo, Meghan Trainor, Cee Lo Green, 5 Seconds of Summer, Linkin Park, Prince Royce, Snoop Dogg, Gavin DeGraw, Colbie Caillat, Andy Grammer, James Blunt, Big Sean, Travis Barker, Lukas Graham, Skylar Grey, Rixton, The Vamps and Icona Pop amongst many others.  He's had multiple record deals as an artist as well.  The first was in 2003 with Insider Trading Corporation/EMI which was a label Golan started while in school.  The label teamed up with EMI's then president, Phil Quatararo, and released "Reagan Baby".  After that, Ross co-founded Glacier Hiking which had a hybrid publishing/label deal with Lionsgate The band released a self-titled EP before breaking up in 2009.  Throughout both projects, Ross developed a one-man musical called, The Wrong Man which is about a man who's wrongly accused of a crime committed in Reno, NV.  The show opened in February 2014 and received three Ovation Awards of four Nominations including Best Musical, Best Book and Best Lyrics and Music.  Ross is also the podcast host of and the Writer Is... which is coproduced by Joe London.  He is the 2016 BMI Pop Songwriter of the Year and is currently published by Warner/Chappell Music.

Darius Rucker: Darius Carlos Rucker (born May 13, 1966) is an American singer and songwriter.  He first gained fame as the lead vocalist and rhythm guitarist of the Grammy Award-winning American rock band Hootie & the Blowfish, which he founded in 1986 at the University of South Carolina along with Mark Bryan, Jim "Soni" Sonefeld and Dean Felber.  The band has released five studio albums with him as a member, and charted six top 40 hits on the "Billboard" Hot 100.  Rucker co-wrote the majority of the band's songs with the other three members.

Orange and Lemons: Orange and Lemons is a Filipino pop rock band formed in 1999 by lead vocalist and guitarist Clem Castro along with Ace and JM del Mundo.  Former member, Mcoy Fundales served as the lead vocalist and guitarist since it's formation until it's last reception in 2007.  The group's musical genre's been a mixed of alternative rock, indie pop and experimental music and heavily influenced by several well-respected bands in different generations like The Smiths, The Beatles and the Eraserheads.  The band had released three several albums and gained commercial success with their sophomore album "Strike Whilst the Iron is Hot" released in 2005.

Supporting paragraphs: Ross Golan The Vamps (British band)
Answer: Brad Simpson