 Valentina Monetta represented San Marino for a third and final consecutive year, having previously represented the microstate at the 2012 and 2013 contests. This makes Monetta the fourth main singer to compete in three consecutive contests (and the only one of amongst them never to win in one of these occasions), following Lys Assia and Corry Brokken, who both competed in the 1956, 1957 and 1958 contests, and Udo Jürgens, who competed in 1964, 1965 and 1966. Paula Seling and Ovi returned as a duo, having previously represented Romania in 2010. The Tolmachevy Sisters, who represented Russia, previously participated in and won the Junior Eurovision Song Contest 2006. Macedonian backing vocalist Tamara Todevska previously represented Macedonia in 2008. Martina Majerle, who represented Slovenia in 2009 and provided backing vocals numerous times for Croatia (2003), Montenegro (2008) and Slovenia (2007, 2011, 2012), returned as a backing vocalist for Montenegro.
