"Back & Forth" is a song written by R. Kelly for American singer Aaliyah's debut studio album Age Ain't Nothing but a Number (1994). Its lyrics chronicle a teenage girl's excitement to celebrate the weekend by going to a party and having fun with her friends. The music video for the song was shot in her hometown of Detroit and features Aaliyah and Kelly performing in a gym with her real-life friends from high school.
The song was released as the album's lead single in early 1994 (see 1994 in music), and certified gold by the RIAA on June 9, 1994. It spent three weeks at number-one on the U.S. Billboard Hot R&B Songs chart, and peaked at number 5 on the Billboard Hot 100, becoming her first single to hit the top-ten. The single was ranked second on the year-end chart of Hot R&B/Hip Hop Songs. The single also went top-ten in Canada.

◎专辑全球累积销售破亿之R&B天王逾23年音乐生涯首张圣诞大碟
◎别于其他艺人应景之作，亲自唱作及製作12首原创圣诞曲目
◎融合传统R&B、Soul、Jazz、Funky、Hip-Hop、Gospel等元素传送温馨佳节气氛

将男欢女爱韵事毫无遮掩的赤裸浮上檯面，令人脸红心跳的词彙，佐入酥软诱惑的旋律，相当适合调情、床上游戏时的搭配主题曲，R. Kelly掀起节奏蓝调界最「R级」情色风暴！累积全球破亿销售量，拿下11座灵魂列车+3座葛莱美和Vibe音乐奖+2座全美音乐+MOBO和BET全数到手，立足90年代销售最佳的R&B歌王之首，媒体赋予「节奏蓝调之王」、「流行灵魂之王」等美誉！虽然限制级的歌谣不断涌现，替已故天王巨星Michael Jackson所撰写的感人之作〈You Are Not Alone〉，成为金氏世界纪录认证「首支空降告示牌流行榜冠军单曲」；撰写电影「怪物奇兵」励志主题曲〈I Believe I Can Fly〉，入选滚石杂志「史上500首经典歌曲」名单；担纲製作与谱写〈I’m Your Angel〉，和美声天后Celine Dion送出圣诞佳节最温暖的祝福，霸佔美国流行榜6週冠军…等知名单曲，都是扭转R. Kelly形象的「清新」小品集。自从与美声团体Public Announcement共同出辑，随后的个人首碟《12 Play》至今，呼风唤雨超过20的年头，1993-2015年间共发行13张专辑，全部霸佔美国告示牌节奏蓝调榜冠、亚军席次，立足永不败的霸主地位！

R. Kelly交出生涯第一张圣诞大碟《12 Nights Of Christmas》，不同于其他艺人的应景作品，12首曲目全部由R. Kelly亲笔原创撰写，排除翻唱经典圣诞歌谣，并且一肩扛起製作大任。原先预计于2014年问市，由于更多的灵感涌现，经过两年的酝酿才终告发行。聚集传统R&B、Soul、Jazz、Funky、Hip-Hop、Gospel等元素，将团聚的温馨与欢乐突显在歌谣裡头。一举荣登美国告示牌节庆专辑榜第13名。单纯的钢琴弹奏伴唱〈My Wish For Christmas〉，道出R. Kelly的衷心祝福之后，轻柔依旧的〈Snowman〉，摇摆出的愉悦节奏，足以令人随之翩翩起舞；有许多状况远在异地无法团聚或坚守工作岗位的人们，可以藉由〈I'm Sending You My Love For Christmas〉此曲传递内心渴望相聚之情，用爱拉近彼此的距离；闪烁明亮旋律的〈Greatest Gift〉和〈It's Christmas Day〉，忘却一年内发生沮丧难过之事，期待来年更加开心、平安，幸福围绕著你我！

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Robert Sylvester Kelly is an American singer, songwriter, record producer and philanthropist. He has been credited with helping to redefine R&B and hip hop, earning nicknames such as "the King of R&B", "the King of Pop-Soul", and the "Pied Piper of R&B".