Keane's piano-driven pop/rock cemented them as one of the best-selling and most-beloved bands in U.K. history. Debuting in the early 2000s as part of the wave of post-Coldplay sensitive indie that crashed the mainstream, their first album, the anthemic Hopes and Fears, was a commercial and critical success that endured well beyond its 2004 release, pushing darker sophomore effort Under the Iron Sea to the top of the charts in the U.K.