"Sirius" is a 1982 song by the British rock band The Alan Parsons Project from the album Eye in the Sky. It is a 1:54 minute instrumental piece that segues into "Eye in the Sky"' on the original recording. From the 1990s onward, "Sirius" has become a staple of many big-time college and professional sporting arenas throughout North America.

On the album, "Sirius" segues into "Eye in the Sky". The former is usually followed by the latter on airplay, though not always in live performances — at the World Liberty Concert "Sirius" was played as the introduction to "Breakaway" (from the Alan Parson solo album Try Anything Once), with Candy Dulfer on saxophone.

Ricky "The Dragon" Steamboat used an abbreviated version of "Sirius" as his entrance music during his 1980s tenure in the World Wrestling Federation. To avoid paying royalties, however, the WWE edited out Steamboat's entrances with the track or overdubbed them with a homegrown theme from his 1991 run in the WWF.

"Sirius" is best known in the U.S. as the instrumental song that was used to introduce the starting lineup of the Chicago Bulls for home games at both Chicago Stadium and the United Center during their run of six NBA championships between 1991 and 1998. "Sirius" was the opening number of the 2000 documentary Michael Jordan to the Max.

The piece has also been used by the NBA teams the Phoenix Suns and the Milwaukee Bucks to introduce their starting lineup during home games. The Utah Jazz used the instrumental piece to introduce their starting lineup for Game 6 of the 1998 NBA Finals.

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