Tiago Ferreira 
O arranque do certame foi dado com a história de Netta Barzilai, desde a sua infância até ao sucesso a nível mundial. A cantora abriu a primeira semifinal com o tema “Toy”, vencedor do Festival Eurovisão da Canção de 2018, realizado pela primeira vez em Lisboa.
O primeiro país a subir a palco foi o Chipre. Tamta foi a escolhida para representar o país com o tema “Replay”.
1. Chipre
Intérprete: Tamta
Canção: “Replay”
???????? We'll have that song on Replay all week! A great opening performance from @_Tamta_!#DareToDream #Eurovision #CYP pic.twitter.com/tM7GvjVuAb
— Eurovision Song Contest (@Eurovision) May 14, 2019
2. Montenegro
Intérprete: De mol
Canção: “Heaven”
???????? Are you in Heaven listening to D mol? Amazing staging! #DareToDream #Eurovision #MNE pic.twitter.com/5yBPBFEtgQ
— Eurovision Song Contest (@Eurovision) May 14, 2019
3. Finlândia
Intérprete: Darude (Sebastian Rejman)
Canção: “Don’t Look Away”
???????? Don't Look Away from @Darudevil and @SebastianRejman's, performance! WOW!#DareToDream #Eurovision #FIN pic.twitter.com/8yFJWcQfa8
— Eurovision Song Contest (@Eurovision) May 14, 2019
4. Polónia
Intérprete: Tulia
Canção: “Fire of Love (Pali się)”
???????? Loving Tulia, representing Poland! Will you be voting for them?#DareToDream #Eurovision #POL pic.twitter.com/gstWnnFjLZ
— Eurovision Song Contest (@Eurovision) May 14, 2019
5. Eslovénia
Intérprete: Zala Kralj & Gašper Šantl
Canção: “Sebi”
???????? Aww so cute! Zala and Gasper gave a sweet performance this evening.#DareToDream #Eurovision #SVN pic.twitter.com/RRJDnRQt7R
— Eurovision Song Contest (@Eurovision) May 14, 2019
6. República Checa
Intérprete: Lake Malawi
Canção: “Friend of a Friend”
???????? Can you hear it? She's only a friend of a friend! Does @LakeMlw get your 12 points?#DareToDream #Eurovision #CZE pic.twitter.com/Su5D6W7GNI
— Eurovision Song Contest (@Eurovision) May 14, 2019
7. Hungria
Intérprete: Joci Pápai
Canção: “Az én apám”
???????? Joci Papai has proved he can return to the Eurovision stage and give the audience a great show!#DareToDream #Eurovision #HUN pic.twitter.com/JYo0eSASla
— Eurovision Song Contest (@Eurovision) May 14, 2019
8. Bielorrússia
Intérprete: ZENA
Canção: “Like It”
???????? That was Zena from Belarus. Did you Like It enough to send her to the Grand Final?#DareToDream #Eurovision #BLR pic.twitter.com/hE8HnghzJm
— Eurovision Song Contest (@Eurovision) May 14, 2019
9. Sérvia
Intérprete: Nevena Božović
Canção: “Kruna”
???????? Will you be giving the Kruna (Crown) to Nevena Božović? #DareToDream #Eurovision #SRB pic.twitter.com/zimHd9MrqZ
— Eurovision Song Contest (@Eurovision) May 14, 2019
10. Bélgica
Intérprete: Eliot
Canção: “Wake Up”
???????? Eliot representing Belgium just finished performing his song Wake Up! Will it be enough to send him to the final?#DareToDream #Eurovision #BEL pic.twitter.com/VCBA4iuZdo
— Eurovision Song Contest (@Eurovision) May 14, 2019
11. Geórgia
Intérprete: Oto Nemsadze
Canção: “Keep on Going”
???????? Keep On Going, Oto! Sing your heart out!#DareToDream #Eurovision #GEO pic.twitter.com/PLEiZ84QNy
— Eurovision Song Contest (@Eurovision) May 14, 2019
12. Austrália
Intérprete: Kate Miller-Heidke
Canção: “Zero Gravity”
???????? Has @kmillerheidke done enough for your vote? The Australian singer has performed Zero Gravity, but will you be sending her to the Grand Final? #DareToDream #Eurovision #AUS pic.twitter.com/9mfFx2eL2J
— Eurovision Song Contest (@Eurovision) May 14, 2019
13. Islândia
Intérprete: Hatari
Canção: “Hatrið mun sigra”
???????? BDSM, techno, performance artists Hatari sure know how to put on an incredible show!#DareToDream #Eurovision #ISL pic.twitter.com/kDIE1drBVM
— Eurovision Song Contest (@Eurovision) May 14, 2019
14. Estónia
Intérprete: Victor Crone
Canção: “Storm”
???????? A Storm like this! Yes Victor!#DareToDream #Eurovision #EST pic.twitter.com/UJP7r4q7P3
— Eurovision Song Contest (@Eurovision) May 14, 2019
15. Portugal
Intérprete: Conan Osíris
Canção: “Telemóveis”
???????? What amazing staging and lyrics from Conan Osiris, representing Portugal! #DareToDream #Eurovision #PRT pic.twitter.com/3N7nBHiEVn
— Eurovision Song Contest (@Eurovision) May 14, 2019
16. Grécia
Intérprete: Katerine Duska
Canção: “Better Love”
???????? Who you waiting for? Katerine Duska just smashed it with Better Love for Greece there!#DareToDream #Eurovision #GRE pic.twitter.com/GdsXzjnArJ
— Eurovision Song Contest (@Eurovision) May 14, 2019
17. São Marino
Intérprete: Serhat Say
Canção: “Na Na Na”
???????? Do you Say Na Na Na? Or Say Yes Yes Yes for Serhat?#DareToDream #Eurovision #SMR pic.twitter.com/sMq15VuYcU
— Eurovision Song Contest (@Eurovision) May 14, 2019
