AceShowbiz - Ariana Grande hit London with her boyfriend, Ethan Slater, after landing her first-ever Oscar nomination. She's vying for Best Supporting Actress for her role as Glinda in the Broadway adaptation "Wicked".

Earlier in the day, the "Thank U, Next" singer took to Instagram to express her overwhelming gratitude for the recognition and dedicated the nod to her younger self. "Picking my head up in between sobs to say thank you so much to @theacademy for this unfathomable recognition," she wrote. "I cannot stop crying."

Ethan Slater also celebrated her nod on social media, sharing a rare photograph of Grande standing on their hotel balcony with pink balloons in hand.

Later that evening, Grande and Slater were spotted stepping out in London to celebrate. The 31-year-old singer stunned in a shimmering pink satin Schiaparelli dress, paired with pointy-toed pink heels. She accessorized her look with an eye-catching Schiaparelli anatomy jewelry bag.

Slater, who co-stars with Grande in "Wicked," looked dapper in a mottled blue, green and beige striped sweater with cuffed gray–blue trousers. The couple was seen driving away in a black van.

"Wicked" also received several other nominations, including Best Picture. After the nominations were announced, Grande reunited with her co-star, Cynthia Erivo, for a lunch in London. Erivo is nominated Best Actress for her role in the movie.