Zendaya and Tom Holland Sing Whitney Houston Song at Tennis Match

Zendaya and Tom Holland put on an impromptu performance during the BNP Paribas Open ... belting out Whitney Houston at a break in the action. The lovely couple were sitting together at the tennis final Sunday when they were both seemingly overtaken by the music ... launching into their own renditions of "I Wanna Dance with Somebody" by the late, great artist. Tom Holland and Zendaya singing along to Whitney…