The source also insisted he spotted them kissing during the screening."
Los Angeles, Aug 13 - Singer Ariana Grande is reportedly dating rapper Big Sean.
Grande has grown increasingly close to Sean ever since they collaborated on the song Problem.
They have been friends since they made the song together. They have been spending more time together and recently have been getting very close. They are both doing great, eonline.com quoted a source as saying.
The new couple was recently spotted at The Grove here following a late showing of The Purge.
One onlooker said they arrived partway through the movie and left before the end, but were still recognised by about three people.
The source also insisted he spotted them kissing during the screening.
The rapper's engagement to Glee actress Naya Rivera ended in April.