The Coldplay frontman, who announced his separation from Gwyneth Paltrow in late March after 10 years of marriage, has been hooking up with the 'Hunger Games' actress since her split from British actor Nicholas Hoult earlier this summer.
Sources told E! News that the duo quietly began spending lots of quality time together in late June.
Jennifer, 24, and the 'Magic' hitmaker, 37, were first spotted in deep conversation at the after-party for Coldplay's Royal Albert Hall gig in London on July 1, where an eyewitness told heat magazine that they spent over two hours side-by-side.
The source said at the time: ''They were talking the whole time and being really flirty. There was a whole party of people wanting Chris' attention, but his eyes were only on her.
''He seemed really into her - how could you not fancy Jennifer Lawrence?''
The Oscar-winning beauty split from Nicholas, 24, a few months ago due to their hectic schedules.
The duo first broke-up in January 2013 after two years together, but reunited last summer after filming the new 'X-Men' movie together.
Meanwhile, Gwyneth, 41, who has daughter, Apple, 10, and son, Moses, eight, with Chris, has also moved on and is dating 'Glee' executive producer and co-creator Brad Falchuk.
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