Complex sentence: In September 2009, The Feelers announced a competition with MasterCard for two people to win a trip for 7 days to the Cook Islands, the two winners would sing along in the chorus and appear in the video of their next single "Blue Skies".
Split into simpler sentences: In September 2009, The Feelers announced a competition with MasterCard for two people to win a trip for seven days to the Cook Islands. The winners would sing along in the chorus and appear in the video of their next single "Blue Skies".