TO GO WITH AFP STORY BY BEN SIMON Pastor Robert Kayanja -- one of Uganda's wealthiest and most prominent Evangelical pastors -- sings during a massive preach of the Born Again Church in Mbarara, western Uganda's largest town, on August 23, 2008. Since President Yoweri Museveni took power in 1986, the Born Again Church has grown exponentially. While Uganda has long been majority Christian, the recent past has seen huge defections from older churches to Pentecostalism. Some argue that shift has been helped by the first family's support.