I think the "Corner of the Red Tights (#637)" is one of best and funny segment in Idoling!!! show, especially the monkey business of Serina-chan.
And maybe it's more hints of the Fonchi's secret photo from this episode:
Fonchi look like very terrified when she knows she maybe need to wear the red tights.
Amimi make the funny pose when they are talking to Fonchi.
Because Fonchi so afraid wear the red tights, so I guess the secret photo is a scene of Fonchi's cloths (costume?) burst from her oversize stature.
=====================================================
Just saw the news from
Idoling!!! official website:
The 13th single "プールサイド大作戦 (Operation of Poolside?)" will release on 4-Aug-2010, the release method same as 12th single, Limited Edition A (CD+DVD+Collect Card), Limited Edition B (CD+QT Card) and Regular Edition (CD+Collect Card). Will you purchase the limited edition B??