求一首英文歌.依稀记得歌词有i love you.........i need you. 是个女声，很多电视剧，广告都用过背景

歌名： I love you 演唱者: 鬼泽夫妇 【吴映洁(鬼鬼) & 玉泽演(2PM) 】 歌词 (泽演): At First I Didn't Know My Life Is Gonna Be Changed Completely U Gotta Believe Me. (鬼鬼): At First I Didn't Know My Life Is Gonna Be Changed Completely You Always protect Me. (鬼泽): I Love You.