Double A-sides for her latest 5th single, "Chu Chu" seemingly gives off a strong 80's rock and roll genre and "HellO" with a Summer feel vibe respectively for both songs. There's definitely a change in direction for her music as I have been following her past few singles pretty closely, but it's quite a refreshing change as well as typically some CD singles released during May/June under the J-pop industry under my observation tends to introduce more Summer-ish feel to their tunes as it is close to Summer season in Japan.
From my understanding, A-side "Chu Chu" track is also official TVCM song of "NUOVO FIT PUMPS FLEX, NUOVO PLAT SANDAL" for ABC-Mart boutique outlets in Japan.
Mariya Nishiuchi - Chu Chu (Short PV)
Mariya Nishiuchi - HellO (Short PV)
ABC-Mart Official TVCM featuring Chu Chu