Elizabeth Olsen was seen back in California on Sunday amid dating rumors involving Tom Hiddleston and Chris Evans.

In a report by Mail Online, the Olsen twin's younger sister was pictured coming out of producer Jennifer Klein's annual pampering party. The actress opted for a casual look wearing denim shorts and a white blouse. Other stars sighted in the party included Lily Collins, Katherine Heigl, Anna Faris, Rebel Wilson, Melissa Benoist and Selena Gomez.

Also on Sunday, Entertainment Weekly has officially released a first look on Olsen and Hiddleston's onscreen role as husband and wife for "I Saw The Light." The photo showed the rumored couple looking at each other while they share a song.

Rumor has it Elizabeth Olsen and Tom Hiddleston made a connection on the set of the upcoming film and has gotten close since then. Olsen though was also rumored to be dating Chris Evans. But unlike Hiddleston, the "Captain America: Civil War" co-stars have yet to be spotted together in public despite the rumors. The "I Saw The Light" co-stars though were seen in London back in July after watching a show on Broadway and having dinner together as reported by People. Evans and Olsen though have been pictured together on the set of "Captain America" back in May as told by Inquisitr.

Dating rumors involving the actors surfaced just a few months ago. Us Weekly first reported Olsen and Hiddleston purportedly dating back in May.

"They have been hooking up," the insider said then. "It's casual."

But in July, the National Enquirer reported as cited by The Hollywood Gossip that it was Evans and Olsen who were dating and Hiddleston was just a cover.

"Chris and Lizzie are definitely involved in some kind of ultra-secret romance that's being kept under wraps while they shoot," a source revealed back in July. "The attraction between them has been there from day one."

Elizabeth would be appearing on screen with Tom Hiddleston in "I Saw The Light" on Nov. 27. She would be starring alongside Chris Evans, meanwhile, in "Captain America: Civil War" that's coming out on May 6, 2016.