One to One! (Russian: Один в один!, romanized: Odin v odin!) is a Russian talent show based on the Spanish series Your Face Sounds Familiar. The show involves celebrities (actors, television personalities, comedians) portraying various iconic singers each week. Manufacturer — company WeiT Media.

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Ten famous singers took part in the first four seasons of the show (in the fourth season, the number of main participants was reduced to 9, and an invited ex-participant of the project acted as the tenth contestant). In each issue, they had to transform into music stars, trying to adopt the original style of the artist, from appearance and manner of movement to the timbre of the voice. The jury, consisting of four people, evaluates what they see at the end of each issue according to a system similar to the distribution of points at the Eurovision Song Contest: each member of the jury gives points from 2 to the most disliked performance to 10 to the second place; the best performance, according to a jury member, receives a score of 12 (there is no score of 11). After the jury's ratings are announced, each participant chooses one opponent to whom he wants to award an additional 5 points. The reasons may be different: participants can choose the opponent whose performance they liked the most, or support the opponent who performed poorly, or did not receive enough points from the jury members. At the end of each issue, the participants will find out who they will have to portray next time.

The points scored by the participants accumulate, and as a result, the five participants with the highest number of points (in season 4 - all 9) go to the finals, where the winner of the season is determined by live audience voting. Unlike the "qualifying" editions, in the final, the participants themselves choose the star they will transform into. It can be any celebrity that this participant did not show on the project. From the first to the second season, the finale was broadcast live. The viewers themselves determined the winner of the project by SMS voting during the broadcast of the final. Also in season 1, the exact number of people who voted for the winner was shown. In season 2, a photo of the winner of the project was shown on the big screen. Since season 3, the finale has been recorded, but viewers still had the right to determine the winner by SMS voting - from Sunday to Wednesday (in season 3, the hosts opened 4 envelopes with participants who took fifth, fourth, third places and the name of the winner, and in season 4, when determining the winner, they took into account also, the points scored by the participants for all issues). In season 4, the broadcast was again recorded; this time, from 9th to 3rd places, the names of the participants who took them were shown on the screen, and the 3rd place and the name of the winner, as in the previous season, were opened in an envelope.

The fifth season was attended not by stars, but by ordinary people (with the exception of individual pop artists such as Anton Zatsepin, Yuri Titov, Andrey Barinov and Alexander Ozerov). The season was attended by 8 people, there was no interview with the co-host. Each participant has his own mentor — an ex-participant of the project, who chooses the image of the artist being shown using a button, after which he looks for a ward for this role among the "willing". The grading remains the same as in previous seasons, except that the jury scores not from 2, but from 4 to 12. Those who will receive 5 points were coordinated by the participants and mentors with each other. The winner of the issue automatically became a finalist for the project, while still having the right to choose the image for the finale himself. The season finale was recorded; instead of SMS voting, the winner was determined by the audience in the studio by voting with a button on the remote control.

There are two presenters in the project, one leads the show and introduces the participants, and his co-host (co-host) interviews them before going on stage. During the interview, they show footage from vocal and acting rehearsals.

• Presenter
• Alexander Oleshko (2013, 2019)
• Nonna Grishaeva (2013)
• Igor Vernik (2014―2016, 2019)
• Yulia Kovalchuk (2014―2016)

  Highest scoring performance

  Lowest scoring performance

  Qualified for the final

  Didn't qualify for the final

The following table contains contestants scores for images shown 4 or more times

  Season 1

  Season 2

  Season 3

  Season 4

  Season 5

  Highest scoring performance

  Lowest scoring performance

• Toch-v-Toch