Question: Who is the lead guitarist and co-founder with Chris martin of the band formerly known as Pectoralz, which was renamed Coldplay?
Sentence (from "Slideling"): The album features guest appearances by Coldplay singer Chris Martin, who provides backing vocals and piano on "Sliding" as well as piano on "Arthur"; Coldplay lead guitarist Jonny Buckland, who plays guitar on "Sliding" and "Arthur"; and actor John Simm, who plays guitar on "Sliding".
Relevant evidence: No