But video of American Arab’s Got Talent singer converting is not realThough Jennifer Grout, the 23-year-old American singer, doesn’t speak a word of Arabic, she has a rare talent: singing Arabic songs, including Arabic traditional ones, so fluently, so softly and so beautifully. When Grout participated in Arabs Got Talent last year, she was among the top three finalists, with thousands viewing her spine-tingling performances of songs by Umm Kulthoum on YouTube. More recently, a video of a different kind has been drawing attention to Grout — one showing her announcing her conversion to Islam, which was posted online last...