Conversation so far:
what type of side projects rammstein have?
According to Peter Tagtgren - who works with frontman Till Lindemann on their side-project Lindemann .
Are there any other interesting aspects about this article?
In early August 2015, Rammstein released a trailer for an upcoming project, titled "In Amerika".
When did it actually release?
August 15, the band announced Rammstein in Amerika.
Did they tour?
Rammstein played several festivals in Europe and North America during 2016.

Question: What was their most recent hit released?
Self-contained rewrite: When was Rammstein's most recent hit released?