LONDON (AP) — Justin Bieber is putting his heart ahead of the chart. The singer is sending a message to his British fans: don’t let his single be number one this week. Bieber says he doesn’t want to top the British charts because a charity single is also in the running for the number-one spot — and he wants the charity song to win. Bieber is narrowly ahead of a song done by a choir of the National Health Service. Proceeds from the choir’s single will go to charity. The Christmas Day chart is a big deal in Britain.