The expression "Live it up" cannot be translated literally. A similar Spanish expression is "Agárrate la vida" which literally translates to "grab on to your life" and is similar to the English expression "grab on with everything you've got" as it applies to living a more adventurous life.
If you mean "Live it up" as in "go to a lot of parties", the best Spanish expression would probably be "Vivo la vida loca" (which did exist before Ricky Martin) and translates to "I live the crazy life."
"Living the sweet life" in Spanish is "viviendo la vida dulce". It is pronounced 'bee-bee-EHN-doe la BEE-dah DUEL-say". Please see this site for confirmation of the translation:
http://www.answers.com/library/Translations
Ame su vida (usted)
Amen su vida (ustedes)
Ama tu vida (tú)
Amad vuestra vida (vosotros, as)
Viva su vida.
vida viva al más lleno
Así es la vida!
Translation: Toma tu vida
"Life is sweet" in Spanish is "la vida es dulce." It is pronounced, "la BEE-dah ess DOOL-say." Sites such as learn-spanish.co.il provide audio pronunciations of many common Spanish words.
ricura
Dulces sueños muñeca
La Vida.
La Vida.
you are not living your life = no estás viviendo tu vida
"Life is sweet" in Spanish is "la vida es dulce." It is pronounced, "la BEE-dah ess DOOL-say." Sites such as learn-spanish.co.il provide audio pronunciations of many common Spanish words.
Vivendo uma doce vida.
You can say "viviendo la vida fácil".
Spanish... La vida es para vivirse
"Viviendo la vida"
Amo vivir la vida.
So sweet. = Tan dulce.
eres dulce
ricura
dulces sueños
muy dulce