Thriii is stranger than it sounds.

Thriii is an American girl group that was formed in 2005 by the sisters China Anne McClain, Sierra McClain, and Lauryn McClain.

Thriii is an American girl group that was formed in 2005 by the sisters China Anne McClain, Sierra McClain, and Lauryn McClain. The group was also known as 3mcclaingirls in 2005–2009, McClain Sisters in 2010–2014 and just McClain in 2014–2015.