Ariana Grande launched the UK leg of her "Eternal Sunshine" tour at London's O2 arena, delivering a two-hour performance that emphasized her vocal range and agility. Thousands of fans, many in elaborate costumes, attended the opening night.

The concert marks Grande's first UK performances since 2019, with previous absences attributed to the COVID-19 pandemic and her role in the film "Wicked."

While the production featured elaborate sets, smoke effects, and choreography, the focus remained on Grande's four-octave voice. A notable moment in the show involved Grande using technology to layer her own voice, creating harmonies and ad-libs that formed the foundation for the song "Eternal Sunshine."

Grande is scheduled to perform 10 dates in London. Following this tour engagement, the artist has indicated she will be taking a step back from public life.

Ariana Grande fans Harry and Damon pose in floral headpieces outside the star's concert in London