Charmed premiered in 1998 and followed the Halliwell sisters, witches guided and protected by Whitelighters, guardian angels who travel by orbing. The effect turned a character into swirling blue and white lights, accompanied by this distinctive chiming sound that fans instantly associate with Leo Wyatt and other Whitelighters. Different variations were used across the series for arriving, leaving and orbing objects. Clips and edits shared online have kept the sound popular with fans making tributes, scene recreations and magical transition videos long after the original series ended in 2006.