Complex sentence: They also stick to old school of rap, but keep underground influences and spent almost a decade fostering an underground fanbase before releasing their debut studio album "L'école des points vitaux" in 2010.
Split into simpler sentences: They also stick to old school of rap, but keep underground influences. They spent almost a decade fostering an underground fanbase before releasing their debut studio album "L'école des points vitaux" in 2010.