LONDON (Reuters) – British pop star Elton John announced on Wednesday he had become a father for the second time after the birth via a surrogate mother of Elijah Joseph Daniel Furnish-John. The "Rocket Man" and "Candle in the Wind" singer and his partner David Furnish confirmed the news in a short statement on John's official website, which also provided a link to an article in Hello! magazine. "Both of us have longed to have children, but the reality that we now have two sons is almost unbelievable," said the couple, who entered a civil partnership in 2005. …