Boy group INFINITE released their second repackage album Be Back.

INFINITE's album Be Back, released on July 22, contains 15 songs including new song "Back," coupling song "Diamond," and "Last Romeo."

The performance of "Back," staged last week through various music programs, has already proved its popularity by topping search engines. New song "Back" is an orchestra pop song produced by Rphabet.

Coupling song "Diamond" is a ballad track with a dramatic string arrangement.

Fans responded to INFINITE's repackage album by commenting: "Wow, 180-degree change from "Last Romeo!"" "INFINITE rocks; I've been listening to the same music all day."

Woolim Entertainment stated: "Many fans have been asking for "Back" even before the song's release. We thank fans for their continued love and support."

Meanwhile, INFINITE will host summer concert "In The Summer 2" next month.