Fiestar
Singles
Table:
Title

Year

Peak chart positions

Sales

Album

KOR Gaon

KOR
Hot 100
[36]

Digital
[37]

Album
[38]

"Sea of Moonlight" (with IU)

2012

10

—

12

KOR (DL): 971,687+

LOEN Tree Summer Story

"Vista"

27

9

28

KOR (CD): 1,920+

KOR (DL): 350,922+[39]

Vista (single)

"We Don't Stop"

66

21

58

KOR (CD): 1,408+

KOR (DL): 107,083+[40]

We Don't Stop (single)

"Whoo!" (with Eric Benét)

2013

58

—

80

KOR (DL): 30,599+

Digital single

"I Don't Know"

17

63

63

KOR (CD): 1,629+

KOR (DL): 72,042+[41]

Curious (single)

"One More"

2014

51

—

57

KOR (DL): 73,668+

Digital single

"You're Pitiful"

2015

60

11

—

KOR (DL): 65,454+[42]

Black Label

"Mirror"

2016

80

9

KOR (DL): 47,100+

A Delicate Sense

"Apple Pie"

84

—

KOR (DL): 33,733+[43]

Digital single

"—" denotes releases that did not chart or were not released in that region.
Note: Korean Billboard Hot 100 was introduced in August 2011 and was discontinued in July 2014.

Considering the tabular data covering 'Fiestar' in the 'Singles' section, give a one-line statement limited to the highlighted cells and format it within the following JSON object {"answer": "YOUR ANSWER"}.