Pinoy Ako

 is the official theme song of Pinoy Big Brother, which is sung by the Filipino band Orange and Lemons.

The song has been used since the show's inception in 2005 and it has been part of Filipino pop culture.

This song is also the basis for much of the musical scoring used in the show.

Meaning
The song Pinoy Ako follows the series' tagline of Showing the Real You by promoting to be proud of who you are as a Filipino.

It promotes to Filipinos and obviously to the housemates who enter the Big Brother house to show their real selves without any pretensions because not everyone is perfect and the only way to success is by being yourself and believing yourself.

Versions
Throughout the years, Pinoy Big Brother four versions of this song, sung by four different artists.

In 2015, Pinoy Big Brother: 737 reverted back and used the original theme song for the season however, starting 2015, all versions have been constantly used as the show's musical scores.

Trivia

 * Mcoy Fundales, the vocalist of "Orange and Lemons" is the one who sang the song for Pinoy Big Brother in 2005. Two years later he would eventually become a celebrity housemate for Pinoy Big Brother: Celebrity Edition 2
 * The song became an instant hit phenomenon since its release.
 * The Season 1 housemates created a dance step with this song which was used for their morning exercise routine, although basic steps, the dance immediately became popular among the viewers, especially the younger audiences. The housemates of the succeeding seasons had their own dance steps for but the Season 1 dance is still considered the most popular.
 * The song Pinoy Ako had four different versions used throughout the series.
 * Aside from this song, there are other two theme songs used especially for the Celebrity and Teen editions.