Adrenalina (Senhit song)

"Adrenalina" is a song by Italian singer Senhit, released on 8 March 2021 through Panini S.p.A. The song represented San Marino in the Eurovision Song Contest 2021 in Rotterdam, the Netherlands. The song features uncredited vocals from American rapper Flo Rida. A new revamped version featuring credited vocals from Flo Rida was released on 12 March 2021.

Internal selection
On 16 May 2020, San Marino RTV confirmed that Senhit would represent San Marino in the 2021 contest. A snippet of Senhit's entry was released on 7 March 2021, revealing that Flo Rida would be featured in the song. However Team San Marino behind the entry declared that "Flo Rida has been part of the production and is featured in the music video, but it's yet to be decided if he will take part on stage in Rotterdam. The rap part will either way remain."

At Eurovision
The 65th edition of the Eurovision Song Contest took place in Rotterdam, the Netherlands and consisted of two semi-finals on 18 May and 20 May 2021, and the grand final on 22 May 2021. According to the Eurovision rules, all participating countries, except the host nation and the "Big Five", consisting of, , , and the , are required to qualify from one of two semi-finals to compete for the final, although the top 10 countries from the respective semi-final progress to the grand final. On 17 November 2020, it was announced that San Marino would be performing in the first half of the second semi-final of the contest.

Flo Rida in Eurovision
After much speculation about whether Flo Rida would perform in person, it was officially announced on 18 May 2021, just two days before Senhit was due to take part in the second semi-final on 20 May, that Flo Rida had arrived in Rotterdam and would join Senhit onstage.