Justin Bieber, Selena Gomez: A Red Rose, Reunions, And Rumors [Video]

Justin Bieber and Selena Gomez have reignited romantic speculation after the 19-year-old turned up at her 21st birthday party on Saturday, bearing a single, red rose.

After a full week of celebrations, the actress-singer rang in her milestone big day one last time with a gypsy-themed celebration at Malibu’s Revolve Clothing Beach House on July 27.

For Selena, her night was made even more memorable by the reportedly unexpected appearance of the “Heartbreaker” superstar some time around 9 pm.

“Justin arrived at the party in his leopard-print Audi R8,” one source tells People. “He was casually dressed and carried a single rose.”

When Gomez saw him, she “started to cry,” another insider said. “Justin and Selena went into the house to talk and were inside for a long time before sneaking out together.”

Joining celebrities such as Julianne and Derek Hough, Nina Dobrev, Ashley Benson, Jaden Smith, and Dylan O’Brien, the Canadian singer flew in especially for the bash from his Believe world tour with friends and security.

Unlike the gypsy-clad female stars present, Bieber kept things casual and wore a black-and-green letterman jacket, black jeans, and white high-tops — with one romantic accessory.

That single, red rose.

Justin Bieber Turns Up To Selena Gomez's Birthday Party With A Rose

On a fun-packed evening filled with good friends, chilled VeeV, Mediterranean culinary treats, snakes, belly dancers, mermaids, henna tattoo artists, and a birthday cake shaped like an elephant on a pillow topped off with a huge “21” motif, it seems the Spring Breakers actress also only had eyes for Bieber at the end of her Malibu night.

Despite Gomez recently declaring she is single, multiple media reports quote sources saying she and Bieber slipped out of the venue at around 2 am, holding hands.

The pair reportedly spent the remainder of the night together at Bieber’s Calabasas, Calif., home.

Selena Gomez Goes Gypsy Rose At Her 21st Birthday Party

Gomez’s Gypsy Themed 21st Birthday Party Delighted Her Celebrity Guests

Justin Bieber, Selena Gomez Birthday Party

During a recent promotional performance for her just released Stars Dance album, Gomez told Good Morning America hosts that she and Bieber “have had such a history together and I’ll always care about him and protect him if anybody tries to be mean.”

You’ve got your work cut out, Ms. Gomez.

[Image via Just Jared]