Läupfer formerly SïR is a Native American descendant DJ/producer/sound therapist who reached No. 46 in the Global Hardcore Techno Charts with his mix 'Some Flowers Bloom at Night'. Since then, he has charted at 13 for hardstyle and 14 for hard techno. He also received the Harper's Bazaar Icon Award in 2019 as one of the most influential people of color from the United States.

Läupfer has held two club residencies, numerous special events in Bangkok, and an international guest spot in Hong Kong. His style spans Hard Techno, Hardstyle, Industrial/Dark Techno, Dark Disco, Dark House, Acid, Disco, Soul, Experimental, Organic Techno, Hardgroove, Indigenous, Classical, Opera, Spirituals, and Club Music Reworks.

Currently he is exploring live looping, sound system bass, and modular sessions while constantly expanding their artist expression and knowledge.