Dream & E-girls was a special E-girls unit featuring the members from Dream and E-girls. Although also being part of the E-girls' line-up, in this unit only the Dream members sing while the other E-girls members are featured as performers or back-up vocalists.
The unit was introduced in November 2014 with the song "Move It! -Dream & E-girls TIME-", included as b-side of E-girls' 12th single "Mr.Snowman" and also used to promote the group's third album E.G. TIME.
With Dream disbanding and the members leaving E-girls in 2017, the unit has also disbanded.
Aside "Kibou no Hikari ~Kiseki wo Shinjite~ (Dream & E-girls version)", it is being used the seifuku dance songs from E-girls' music videos or part of them on the songs:
"Move It! -Dream & E-girls TIME-" uses the seifuku dance song from "Kurukuru".
"EXPRESS -Do Your Dance-" uses a part of the "Mr.Snowman"'s "Snow Dance" seifuku dance song.
"Boom Boom Christmas" uses the seifuku dance song from "Odoru Ponpokorin".
Only "Move It! -Dream & E-girls TIME-" have a music video.