LONDON (Reuters) - French electronic duo Daft Punk held on to top spot for a second week in Britain's singles charts on Sunday, keeping London drum and bass quartet Rudimental's "Waiting All Night" down in second place. Daft Punk's "Get Lucky", featuring the guest vocals of Pharrell Williams and Nile Rodgers on guitar, had entered the chart three weeks ago at No.3. The track is the lead single from the pair's upcoming fourth album "Random Access Memories" and is their third biggest hit behind "One More Time" (2000) and "Around The World" (1997). ...