Styles, 19, is smitten with the 22-year-old actress after watching her collect the Best Actress Oscar at the 85th Academy Awards, reported Femalefirst.
"He fell in love with Jennifer after watching her speech at the Oscars. Harry likes goofy girls and thinks it's hilarious that she fell over as she went to accept her award for Best Actress.
"And obviously, like most men, he thinks she's drop-dead gorgeous. He's been begging mutual friends who know Jen to put the word out for him so they can hook up next time they're in the same city. Harry is quietly confident because he normally gets whichever girl he sets his sights on," a source said.