18 Hronia Live, also referred to as 18XL, is a live album by popular Greek singer Katy Garbi recorded and released in 2007 by Sony BMG Greece. The album is her first live album; a double disk compilation of songs performed during a special charity concert held in Egaleo, Greece.

Katerina "Katy" Garbi is a Greek singer active in Greece and Cyprus, with some popularity in Turkey. Her career has spanned over 35 years with over 2 million records sold in Greece and abroad. Garbi's discography is marked by several multi-platinum releases, including Arhizo Polemo (1996) and Evaisthisies (1997), two of the best-selling albums of the decade. Garbi represented Greece in the annual Eurovision Song Contest in 1993 with the song "Ellada, chora tou fotos", taking ninth place. She later struck her biggest commercial success with To Kati (2000) in terms of unit sales. Over the years, Garbi has won 11 Pop Corn Music Awards, including three for Album of the Year, and one Arion Music Award. On 14 March 2010, Alpha TV ranked her among the top-certified female artists in Greece's phonographic era.