There is more than one artist known under this name:

1) Stephen (born 13 December 1991), formerly known as Stephen Swartz, is an American electronic music artist, singer-songwriter, and producer based in Joshua Tree, California. He is known for his song "Crossfire" and his cover of Adele's song "Hello". He is also known for making a collaboration with Pell and Caleborate in the song, "In the Morning".
Stephen's debut album, Sincerely, was released on May 10, 2016.

2) Stephen is a mexican alternative band which was formed in 2004. They have released one album named "Monsters Are Real". The band and the first album name was picked after Stephen King's quote: "Monsters are real, ghosts are too. They live inside us, and sometimes, they win."

3) Stephen was Clean member David Kilgour, former Goblin Mix bassist Alf Danielson, Geoff Hoani, and Stephen Kilroy joined on second guitar. The group disbanded part of the way through recording an album at Stephen Kilroy's Fish Street studio. David rejoined The Clean and eventually recorded his solo LP, while Alf and Stephen went on to form Chug.

Song lyric Crossfire CROSSFIRE Stephen
Song lyric Line It Up LINE IT UP Stephen
Song lyric California CALIFORNIA Stephen
Song lyric Crossfire, Pt. II CROSSFIRE, PT. II Stephen
Song lyric Fly Down FLY DOWN Stephen
Song lyric I Never Stay In Love I NEVER STAY IN LOVE Stephen
Song lyric Man That I'll Miss MAN THAT I'LL MISS Stephen
Song lyric Mr. Man MR. MAN Stephen
Song lyric Play Me Like a Violin PLAY ME LIKE A VIOLIN Stephen
Song lyric Rainbows RAINBOWS Stephen
Song lyric Sincerely SINCERELY Stephen
Song lyric Stay STAY Stephen
Song lyric Voyeur Girl VOYEUR GIRL Stephen
Song lyric Wavin' WAVIN' Stephen
Song lyric Your Life YOUR LIFE Stephen