This upcoming weekend (14-15 March) is the annual event, "Lautern blüht auf," which means something along the lines of "Kaiserslautern is blooming," is "in bloom," or is "blossoming." It is coordinated by a business association in Kaiserslautern and is a weekend meant to bring shoppers and citizens downtown for store specials, children's activities, performances by local groups, and more. There's even the special event of shopping hours on Sunday, when the stores would normally be closed.
My 2014 visit to included performances by Renaissance pirates; read more here.
2013 was all about a muppet kitty marching band and chasing down the Easter bunny; read more here.
Who knows what 2015 will bring? I'll find out and report.
If you want to attend, here is this year's flyer with the schedule and more pertinent information.