Act I: Live in Rosario

Act I is the first live album released by the Finnish soprano Tarja Turunen. The two concerts were recorded and filmed with 10 HD cameras at the El Círculo Theatre in Rosario, Argentina, in March 2012, and released on CD, DVD and Blu-ray on 24 August 2012. Additionally, the Act I media book contains a live recording from Luna Park (titled DVD3).

The track listing consists in a mix of her three solo albums, Nightwish's classic "Nemo" and covers of Andrew Lloyd Webber, Gary Moore and Whitesnake plus a variety of extras.

earMUSIC released the first official teaser for "Act I" on 10 July 2012.

In July 2018, the predecessor to Act I was released, entitled "Act II".

Reception
The recording was well received among critics. A review from the website getredytoROCK! stated that "this live CD will certainly please her fans, [...] epic metal meets pop and classical never sounded so good."

In its review for Firebrand Magazine, Lee Walker commented that "Tarja has once again proved that she walks alone, 7 long years have passed since she parted ways with her previous band, and throughout that time she has continued to prove that she is a successful artist in her right. “Act I” manages to successfully capture all of the magic behind her live performances."

Ant May from Planetmosh praised the technical aspects of the DVD, stating that "The lighting is fantastic with plenty of colour and lighting effects plus use of lasers which all combine to create great visuals." and also called the sound "flawless" and "crystal clear"

Double DVD track listing
+ Bonus:
 * Interviews with Tarja & the band members
 * Videoclip: "Into the Sun"
 * Photogallery 1: Through the Eyes of the Fans
 * Photogallery 2: From Our Vaults: A Fly on the Wall

Media Book
An alternative edition of Act I contains the double CD and DVDs, as well an 80-page photo book and an additional live DVD of the concert at Luna Park.

Personnel
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Main musicians

 * Tarja Turunen - lead vocals, piano, keyboards, producer
 * Alex Scholpp - guitars
 * Kevin Chown - bass, backing vocals, ukulele bass
 * Christian Kretschmar - keyboards, cello
 * Mike Terrana - drums, djembe
 * Max Lilja - cello

Guest musicians

 * Doug Wimbish - bass, acoustic bass guitar
 * Julian Barratt - guitars
 * Diego Valdez - vocals on "The Phantom of the Opera"

Production

 * Mic - producer
 * Tim Palmer - mixing
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