Dolores Mary Eileen O'Riordan (oʊˈrɪərdən ; 6 September 1971 – 15 January 2018) was an Irish singer, musician and songwriter. She was the lead vocalist and lyricist for the Cranberries, an alternative rock band. One of the most recognizable voices in rock in the 1990s, she was known for her lilting mezzo-soprano voice, signature yodel, emphasized use of keening, and strong Limerick accent.
O'Riordan was born in County Limerick, Ireland, to a Catholic working-class family. She began to perform as a soloist in her church choir before leaving secondary school to join the Cranberries in 1990. Recognised for her "unique" voice, she quickly achieved worldwide fame. During her lifetime, she released seven studio albums with the Cranberries, including four number-one albums. Over the years, she contributed to the release of Everybody Else Is Doing It, So Why Can't We? (1993), No Need to Argue (1994), To the Faithful Departed (1996), Bury the Hatchet (1999) and Wake Up and Smell the Coffee (2001) before taking a six-year hiatus starting in 2003.
O'Riordan's first solo album, Are You Listening?, was released in May 2007 and was followed up by No Baggage in August 2009. She reunited with the Cranberries the same year. The band released Roses (2012) and went on a world tour. She appeared as a judge on RTÉ's The Voice of Ireland during the 2013–14 season. In April 2014, O'Riordan joined and began recording new material with the trio D.A.R.K. Throughout her life, she had to overcome personal challenges. O'Riordan struggled with depression and the pressure of her own success, and was diagnosed with bipolar disorder in 2015. She subsequently released her last album with the group, Something Else (2017).
O'Riordan died from drowning due to alcohol intoxication in January 2018. The following year, the Cranberries released the Grammy-nominated album In the End (2019), featuring her final vocal recordings, and subsequently disbanded. With the Cranberries, O'Riordan sold more than 40 million albums worldwide during her lifetime; that total increased to almost 50 million albums worldwide as of 2019, excluding her solo albums.