You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who is the singer for system of a down?" whose answer is Serj Tankian.
Each document should contain about 30 words, and these documents should contain useful information.

Query: current singer of system of a down
Useful Output:

Doc 1: System of a Down vocalist Serj Tankian has released a tell-all statement on the band's current state. This follows guitarist Daron
Doc 2: Since then, the group — consisting of vocalist Tankian, guitarist/vocalist Malakian, bassist Shavo Odadjian, and drummer John Dolmayan — has
Doc 3: Serj Tankian says he's responsible for System of a Down's hiatus. The vocalist shared a lengthy note about the band's current status.
Doc 4: In a new interview with the "Broken Record" podcast, SYSTEM OF A DOWN singer Serj Tankian was asked if it makes him sad that he and his
Doc 5: SERJ TANKIAN Would 'Absolutely' Be Okay With SYSTEM OF A DOWN Continuing With New Singer. Discussion · https://blabbermouth.net/news/serj