user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'As lead artist' regarding 'Lil Debbie discography'
Table Content:
| Title | Year | Album |
| --- | --- | --- |
| "Brain Freeze" (with Riff Raff) | 2012 | Keep It Lit |
| "Gotta Ball" (with V-Nasty) | 2012 | Non-album singles |
| "Michelle Obama" (featuring Riff Raff) | 2012 | Non-album singles |
| "I Do It" (featuring Kool John) | 2013 | Non-album singles |
| "Ratchets" | 2013 | Queen D |
| "Bake a Cake" | 2013 | Queen D |
| "$lot Machine" | 2014 | California Sweetheart, Pt. 1 |
| "Work the Middle" | 2014 | California Sweetheart Pt. 2 |
| "Me and You" | 2015 | Young B!tch |
| "Lofty" | 2015 | Colt 15 |
| "Break It Down" | 2015 | Home Grown |
| "Summer" | 2017 | OG In My System |
| "2 Cups" | 2017 | Non-Album Singles |
| "Boss Bitch" (featuring Kim Lee) | 2017 | Non-Album Singles |


Question
When was the single "Lofty" released?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["In 2015, Debbie released the single \"Lofty\" of Colt 45."]