Senhit Zadik Zadik, known professionally as simply Senhit, is an Italian pop singer. She represented San Marino in the Eurovision Song Contest 2011 in Düsseldorf with "Stand By", but failed to qualify for the final. She would have represented it again in 2020 with "Freaky!", but the contest was cancelled due to the COVID-19 pandemic. Instead, she was chosen to represent San Marino at the Eurovision Song Contest 2021 with the song "Adrenalina", where she qualified to the final and placed 22nd with 50 points.

San Marino participated in the Eurovision Song Contest 2011, held in Düsseldorf, Germany. The Sammarinese national broadcaster Radiotelevisione della Repubblica di San Marino (SMRTV) confirmed the country's second participation in the contest on 22 November 2010, marking their return after not participating in 2009 and 2010. Italian singer Senhit Zadik Zadik, under the stage name Senit, was internally selected by SMRTV to represent San Marino with the song "Stand By". The entry was promoted through the creation of a music video, a promotional tour throughout Europe and an interview to the press in the lead up to the Eurovision Song Contest 2011. San Marino performed 12th in the first semi-final, held on 10 May 2011, and placed 16th, receiving 34 points and failing to qualify for the final.