Paris Jackson and boyfriend Gabriel Glenn.Photo: Gabriel Olsen/Getty Images

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Paris Jacksonhad a blast while stepping out with her boyfriend Gabriel Glenn earlier this week.

A source tells PEOPLE that Jackson, 21, who hosted the event, was “in good spirits” throughout the evening and was “having so much fun with her boyfriend.”

“She seemed like she was in a great mood,” the source adds.

During the celebration, the pair, who sing together as The Sunflowers, also performed four songs they co-wrote, while seated on the steps of an outside courtyard.

Throughout their set, which occurred just after sunset, they both took turns singing and playing the guitar.

Paris Jackson.Gabriel Olsen/Getty Images

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Paris Jackson and Gabriel Glenn.Gabriel Olsen/Getty Images

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Also during the festive bash, which was held at the home of Jonas Tahlin, CEO of Absolut Elyx, guests got a chance to try out the new sauce, while also sipping their own Absolut Elyx cocktails.

Although it’s been a tough few months for Jackson, just last week she celebrated one year of happiness with her boyfriend.

On April 29, the model and singer posted a sweet tribute to her beau on Instagram, calling Glenn the“light” of her life.

In the carousel of photos Jackson chose to post, the couple — show off plenty of PDA and are also seen jamming together.

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Their outing came shortly after shedenied a reportthat she had attempted suicide.

“Paris had an accident this morning that required medical treatment,” a source told PEOPLE at the time. “She is currently resting at home and doing fine.”

source: people.com