Florence + The Machine is an English indie rock and art pop band formed in London in the mid-2000s, centered on lead vocalist Florence Welch and her collaboration with multi-instrumentalist and producer Isabella "Machine" as part of a rotating collective of musicians. The group's music blends baroque pop, indie rock, soul and art rock elements, characterized by Welch's powerful, emotive vocals, dramatic arrangements, and the frequent use of harp, piano and layered percussion. Rising to prominence in the late 2000s, Florence + The Machine are noted for their theatrical, emotive songs and anthemic choruses that combine literary and mythic lyrical imagery with expansive, orchestrated production.