The year 1992, found him collaborating with another Swedish band, Treat with which he also released an album as lead vocalist and a single. In the mid-1990s he worked with Abstrakt Algebra (project band of Candlemass' bassist and composer Leif Edling) and did backing vocals for the band Lion's Share. He also joined an AC/DC cover band, called AB/CD, with which he keeps performing up to the present. In 1997, he teamed up with Swedish guitarist Yngwie Malmsteen, recording the album Facing the Animal and doing the promotional world tour for the named album, world tour which led to the release in 1998 of the album and DVD Live!!, featuring recordings from the shows. 1998 also found Levén collaborating with the project band Southpaw.
In 1999 came out another collaboration, this time with Pontus Norgren. A year later followed another project band called Dogface with which he released two albums.
- 97 Vocals
- 22 Instruments & Performance
- 23 Writing & Arrangement
- 6 Featuring & Presenting
- 5 Production
- 12 Technical
- 2 Acting, Literary & Spoken
|S&V 075||Various||Broken Vow (as Mats Leven) Various - Voices Of Rock (CD, Comp, Promo)||Stereo & Video||S&V 075||Russia||2004||Sell This Version|
|9982682P||Various||Redemption Various - New Release Highlights (Thrilling Albums Out On Century Media Records In October/Early November 2014) (CD, Comp, Promo, Smplr)||Century Media, Superball Music, Inside Out Music||9982682P||Germany||2014||Sell This Version|
|none||Various||Only My Heart Various - Elements Of Frictions (CD, Comp)||Lion's Pride Music||none||Denmark||2014||Sell This Version|
|IFK2015||Various||I Am Me Various - Blåvitt Bäst i Sverige (CD, Comp)||Supporterklubben änglarna||IFK2015||Sweden||2015||Sell This Version|