Complex sentence: Most recently she scored unexpected musical success as a member of superannuated pop group The Zimmers, whose cover of "My Generation" highlighted the plight of the elderly and reached number 26 in the UK singles chart in May 2007.
Split into simpler sentences: Most recently she scored unexpected musical success as a member of superannuated pop group The Zimmers. Their cover version of "My Generation" highlighted the plight of the elderly, and reached number 26 in the UK Singles Chart in May 2007.